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Vulnerability Details :

CVE-2026-42373

Summary
Assigner-securin
Assigner Org ID-33c584b5-0579-4c06-b2a0-8d8329fcab9c
Published At-04 May, 2026 | 15:57
Updated At-05 May, 2026 | 12:43
Rejected At-
Credits

D-Link DIR-605L B2 Hardcoded Telnet Backdoor Credentials

D-Link DIR-605L Hardware Revision B2 (End-of-Life, EOL) contains a hardcoded telnet backdoor. The device starts a telnet daemon at boot via /bin/telnetd.sh with the username "Alphanetworks" and the static password "wrgn76_dlwbr_dir605L" read from /etc/alpha_config/image_sign. The custom telnetd binary accepts a -u user:password flag, and the custom login binary uses strcmp() to validate credentials. Successful authentication grants an unauthenticated attacker on the local network a root shell with full administrative control. The device has reached End-of-Life (EOL) and will not receive patches.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
â–¼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:securin
Assigner Org ID:33c584b5-0579-4c06-b2a0-8d8329fcab9c
Published At:04 May, 2026 | 15:57
Updated At:05 May, 2026 | 12:43
Rejected At:
â–¼CVE Numbering Authority (CNA)
D-Link DIR-605L B2 Hardcoded Telnet Backdoor Credentials

D-Link DIR-605L Hardware Revision B2 (End-of-Life, EOL) contains a hardcoded telnet backdoor. The device starts a telnet daemon at boot via /bin/telnetd.sh with the username "Alphanetworks" and the static password "wrgn76_dlwbr_dir605L" read from /etc/alpha_config/image_sign. The custom telnetd binary accepts a -u user:password flag, and the custom login binary uses strcmp() to validate credentials. Successful authentication grants an unauthenticated attacker on the local network a root shell with full administrative control. The device has reached End-of-Life (EOL) and will not receive patches.

Affected Products
Vendor
D-Link CorporationD-Link
Product
DIR-605L Firmware
CPEs
  • cpe:2.3:o:dlink:dir-605l_firmware:*:*:*:*:*:*:*:*
Platforms
  • MIPS32 Big-Endian
Default Status
affected
Versions
Affected
  • B2 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-798CWE-798 Use of Hard-coded Credentials
Type: CWE
CWE ID: CWE-798
Description: CWE-798 Use of Hard-coded Credentials
Metrics
VersionBase scoreBase severityVector
3.19.8CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Version: 3.1
Base score: 9.8
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

This product is End-of-Life (EOL) and will NOT receive patches. Users should replace the device. Temporary: connect via backdoor and run "killall telnetd" and "iptables -A INPUT -p tcp --dport 23 -j DROP" (lost on reboot).

Exploits

Credits

finder
Arjun Basnet from Securin Labs
Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://www.securin.io/zero-day/cve-2026-42373-hardcoded-telnet-backdoor-in-d-link-dir-605l-b2-end-of-life-
N/A
Hyperlink: https://www.securin.io/zero-day/cve-2026-42373-hardcoded-telnet-backdoor-in-d-link-dir-605l-b2-end-of-life-
Resource: N/A
â–¼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://www.securin.io/zero-day/cve-2026-42373-hardcoded-telnet-backdoor-in-d-link-dir-605l-b2-end-of-life-
exploit
Hyperlink: https://www.securin.io/zero-day/cve-2026-42373-hardcoded-telnet-backdoor-in-d-link-dir-605l-b2-end-of-life-
Resource:
exploit
Information is not available yet
â–¼National Vulnerability Database (NVD)
nvd.nist.gov
Source:33c584b5-0579-4c06-b2a0-8d8329fcab9c
Published At:04 May, 2026 | 17:16
Updated At:06 May, 2026 | 12:19

D-Link DIR-605L Hardware Revision B2 (End-of-Life, EOL) contains a hardcoded telnet backdoor. The device starts a telnet daemon at boot via /bin/telnetd.sh with the username "Alphanetworks" and the static password "wrgn76_dlwbr_dir605L" read from /etc/alpha_config/image_sign. The custom telnetd binary accepts a -u user:password flag, and the custom login binary uses strcmp() to validate credentials. Successful authentication grants an unauthenticated attacker on the local network a root shell with full administrative control. The device has reached End-of-Life (EOL) and will not receive patches.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.19.8CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary3.18.8HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 9.8
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Type: Primary
Version: 3.1
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CPE Matches

D-Link Corporation
dlink
>>dir-605l_firmware>>*
cpe:2.3:o:dlink:dir-605l_firmware:*:*:*:*:*:*:*:*
D-Link Corporation
dlink
>>dir-605l>>b2
cpe:2.3:h:dlink:dir-605l:b2:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-798Secondary33c584b5-0579-4c06-b2a0-8d8329fcab9c
CWE ID: CWE-798
Type: Secondary
Source: 33c584b5-0579-4c06-b2a0-8d8329fcab9c
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://www.securin.io/zero-day/cve-2026-42373-hardcoded-telnet-backdoor-in-d-link-dir-605l-b2-end-of-life-33c584b5-0579-4c06-b2a0-8d8329fcab9c
Exploit
Third Party Advisory
https://www.securin.io/zero-day/cve-2026-42373-hardcoded-telnet-backdoor-in-d-link-dir-605l-b2-end-of-life-134c704f-9b21-4f2e-91b3-4a467353bcc0
Exploit
Third Party Advisory
Hyperlink: https://www.securin.io/zero-day/cve-2026-42373-hardcoded-telnet-backdoor-in-d-link-dir-605l-b2-end-of-life-
Source: 33c584b5-0579-4c06-b2a0-8d8329fcab9c
Resource:
Exploit
Third Party Advisory
Hyperlink: https://www.securin.io/zero-day/cve-2026-42373-hardcoded-telnet-backdoor-in-d-link-dir-605l-b2-end-of-life-
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Resource:
Exploit
Third Party Advisory

Change History

0
Information is not available yet

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||
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Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

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Matching Score-8
Assigner-Zero Day Initiative
ShareView Details
Matching Score-8
Assigner-Zero Day Initiative
CVSS Score-8.8||HIGH
EPSS-2.45% / 85.27%
||
7 Day CHG~0.00%
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Rejected-Not Available
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KEV Action Due Date-Not Available
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Matching Score-8
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Matching Score-8
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CVSS Score-8.8||HIGH
EPSS-4.88% / 89.61%
||
7 Day CHG~0.00%
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Rejected-Not Available
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KEV Action Due Date-Not Available
D-Link G416 httpd API-AUTH Timestamp Processing Stack-based Buffer Overflow Remote Code Execution Vulnerability

D-Link G416 httpd API-AUTH Timestamp Processing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link G416 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HTTP service listening on TCP port 80. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21663.

Action-Not Available
Vendor-D-Link Corporation
Product-g416g416_firmwareG416g416_firmware
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-50208
Matching Score-8
Assigner-Zero Day Initiative
ShareView Details
Matching Score-8
Assigner-Zero Day Initiative
CVSS Score-8.8||HIGH
EPSS-4.13% / 88.69%
||
7 Day CHG~0.00%
Published-03 May, 2024 | 02:14
Updated-10 Mar, 2025 | 16:26
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
D-Link G416 ovpncfg Stack-based Buffer Overflow Remote Code Execution Vulnerability

D-Link G416 ovpncfg Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link G416 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HTTP service listening on TCP port 80. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21441.

Action-Not Available
Vendor-D-Link Corporation
Product-g416g416_firmwareG416g416_firmware
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-50217
Matching Score-8
Assigner-Zero Day Initiative
ShareView Details
Matching Score-8
Assigner-Zero Day Initiative
CVSS Score-8.8||HIGH
EPSS-2.45% / 85.27%
||
7 Day CHG~0.00%
Published-03 May, 2024 | 02:14
Updated-10 Mar, 2025 | 16:26
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
D-Link G416 awsfile rm Command Injection Remote Code Execution Vulnerability

D-Link G416 awsfile rm Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link G416 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HTTP service listening on TCP port 80. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21811.

Action-Not Available
Vendor-D-Link Corporation
Product-g416g416_firmwareG416g416_firmware
CWE ID-CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVE-2023-50207
Matching Score-8
Assigner-Zero Day Initiative
ShareView Details
Matching Score-8
Assigner-Zero Day Initiative
CVSS Score-8.8||HIGH
EPSS-1.70% / 82.40%
||
7 Day CHG~0.00%
Published-03 May, 2024 | 02:14
Updated-10 Mar, 2025 | 16:26
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
D-Link G416 flupl filename Command Injection Remote Code Execution Vulnerability

D-Link G416 flupl filename Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link G416 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HTTP service listening on TCP port 80. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21300.

Action-Not Available
Vendor-D-Link Corporation
Product-g416g416_firmwareG416g416_firmware
CWE ID-CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVE-2023-50206
Matching Score-8
Assigner-Zero Day Initiative
ShareView Details
Matching Score-8
Assigner-Zero Day Initiative
CVSS Score-8.8||HIGH
EPSS-1.70% / 82.40%
||
7 Day CHG~0.00%
Published-03 May, 2024 | 02:14
Updated-10 Mar, 2025 | 16:26
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
D-Link G416 flupl query_type edit Command Injection Remote Code Execution Vulnerability

D-Link G416 flupl query_type edit Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link G416 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HTTP service listening on TCP port 80. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21299.

Action-Not Available
Vendor-D-Link Corporation
Product-g416g416_firmwareG416g416_firmware
CWE ID-CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVE-2023-50201
Matching Score-8
Assigner-Zero Day Initiative
ShareView Details
Matching Score-8
Assigner-Zero Day Initiative
CVSS Score-8.8||HIGH
EPSS-2.45% / 85.27%
||
7 Day CHG~0.00%
Published-03 May, 2024 | 02:14
Updated-10 Mar, 2025 | 16:26
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
D-Link G416 cfgsave upusb Command Injection Remote Code Execution Vulnerability

D-Link G416 cfgsave upusb Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link G416 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HTTP service listening on TCP port 80. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21289.

Action-Not Available
Vendor-D-Link Corporation
Product-g416g416_firmwareG416g416_firmware
CWE ID-CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVE-2023-50199
Matching Score-8
Assigner-Zero Day Initiative
ShareView Details
Matching Score-8
Assigner-Zero Day Initiative
CVSS Score-8.8||HIGH
EPSS-0.58% / 68.90%
||
7 Day CHG~0.00%
Published-03 May, 2024 | 02:14
Updated-10 Mar, 2025 | 16:26
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
D-Link G416 httpd Missing Authentication for Critical Function Remote Code Execution Vulnerability

D-Link G416 httpd Missing Authentication for Critical Function Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link G416 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HTTP service listening on TCP port 80. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to gain access to critical functions on the device. Was ZDI-CAN-21287.

Action-Not Available
Vendor-D-Link Corporation
Product-g416g416_firmwareG416g416_firmware
CWE ID-CWE-306
Missing Authentication for Critical Function
CVE-2023-50203
Matching Score-8
Assigner-Zero Day Initiative
ShareView Details
Matching Score-8
Assigner-Zero Day Initiative
CVSS Score-8.8||HIGH
EPSS-2.54% / 85.54%
||
7 Day CHG~0.00%
Published-03 May, 2024 | 02:14
Updated-10 Mar, 2025 | 16:26
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
D-Link G416 nodered chmod Command Injection Remote Code Execution Vulnerability

D-Link G416 nodered chmod Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link G416 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HTTP service listening on TCP port 80. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21296.

Action-Not Available
Vendor-D-Link Corporation
Product-g416g416_firmwareG416g416
CWE ID-CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVE-2023-50210
Matching Score-8
Assigner-Zero Day Initiative
ShareView Details
Matching Score-8
Assigner-Zero Day Initiative
CVSS Score-8.8||HIGH
EPSS-4.88% / 89.61%
||
7 Day CHG~0.00%
Published-03 May, 2024 | 02:14
Updated-10 Mar, 2025 | 16:26
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
D-Link G416 httpd API-AUTH Digest Processing Stack-based Buffer Overflow Remote Code Execution Vulnerability

D-Link G416 httpd API-AUTH Digest Processing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link G416 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HTTP service listening on TCP port 80. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21662.

Action-Not Available
Vendor-D-Link Corporation
Product-g416g416_firmwareG416g416_firmware
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-50213
Matching Score-8
Assigner-Zero Day Initiative
ShareView Details
Matching Score-8
Assigner-Zero Day Initiative
CVSS Score-8.8||HIGH
EPSS-1.70% / 82.40%
||
7 Day CHG~0.00%
Published-03 May, 2024 | 02:14
Updated-10 Mar, 2025 | 16:26
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
D-Link G416 nodered File Handling Command Injection Remote Code Execution Vulnerability

D-Link G416 nodered File Handling Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link G416 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HTTP service listening on TCP port 80. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21807.

Action-Not Available
Vendor-D-Link Corporation
Product-g416g416_firmwareG416g416_firmware
CWE ID-CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVE-2023-50215
Matching Score-8
Assigner-Zero Day Initiative
ShareView Details
Matching Score-8
Assigner-Zero Day Initiative
CVSS Score-8.8||HIGH
EPSS-2.54% / 85.54%
||
7 Day CHG~0.00%
Published-03 May, 2024 | 02:14
Updated-10 Mar, 2025 | 16:26
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
D-Link G416 nodered gz File Handling Command Injection Remote Code Execution Vulnerability

D-Link G416 nodered gz File Handling Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link G416 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HTTP service listening on TCP port 80. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21809.

Action-Not Available
Vendor-D-Link Corporation
Product-g416g416_firmwareG416g416
CWE ID-CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVE-2023-48842
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-27.24% / 96.42%
||
7 Day CHG~0.00%
Published-01 Dec, 2023 | 00:00
Updated-03 Jun, 2025 | 03:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

D-Link Go-RT-AC750 revA_v101b03 was discovered to contain a command injection vulnerability via the service parameter at hedwig.cgi.

Action-Not Available
Vendor-n/aD-Link Corporation
Product-go-rt-ac750_firmwarego-rt-ac750n/a
CWE ID-CWE-77
Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE ID-CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVE-2023-50214
Matching Score-8
Assigner-Zero Day Initiative
ShareView Details
Matching Score-8
Assigner-Zero Day Initiative
CVSS Score-8.8||HIGH
EPSS-2.54% / 85.54%
||
7 Day CHG~0.00%
Published-03 May, 2024 | 02:14
Updated-10 Mar, 2025 | 16:26
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
D-Link G416 nodered tar File Handling Command Injection Remote Code Execution Vulnerability

D-Link G416 nodered tar File Handling Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link G416 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HTTP service listening on TCP port 80. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21808.

Action-Not Available
Vendor-D-Link Corporation
Product-g416g416_firmwareG416g416_firmware
CWE ID-CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVE-2025-29514
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.21% / 42.56%
||
7 Day CHG+0.02%
Published-25 Aug, 2025 | 00:00
Updated-02 Sep, 2025 | 18:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Incorrect access control in the config.xgi function of D-Link DSL-7740C with firmware DSL7740C.V6.TR069.20211230 allows attackers to download the configuration file via providing a crafted web request.

Action-Not Available
Vendor-n/aD-Link Corporation
Product-dsl-7740cdsl-7740c_firmwaren/a
CWE ID-CWE-284
Improper Access Control
CVE-2025-29515
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.33% / 56.09%
||
7 Day CHG+0.03%
Published-25 Aug, 2025 | 00:00
Updated-02 Sep, 2025 | 18:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Incorrect access control in the DELT_file.xgi endpoint of D-Link DSL-7740C with firmware DSL7740C.V6.TR069.20211230 allows attackers to modify arbitrary settings within the device's XML database, including the administrator’s password.

Action-Not Available
Vendor-n/aD-Link Corporation
Product-dsl-7740cdsl-7740c_firmwaren/a
CWE ID-CWE-284
Improper Access Control
CVE-2020-21016
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-10.39% / 93.25%
||
7 Day CHG~0.00%
Published-31 Oct, 2022 | 00:00
Updated-07 May, 2025 | 14:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

D-Link DIR-846 devices with firmware 100A35 allow remote attackers to execute arbitrary code as root via HNAP1/control/SetGuestWLanSettings.php.

Action-Not Available
Vendor-n/aD-Link Corporation
Product-dir-846_firmwaredir-846n/a
CWE ID-CWE-94
Improper Control of Generation of Code ('Code Injection')
CVE-2019-20216
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-5.13% / 89.90%
||
7 Day CHG~0.00%
Published-29 Jan, 2020 | 02:28
Updated-05 Aug, 2024 | 02:39
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

D-Link DIR-859 1.05 and 1.06B01 Beta01 devices allow remote attackers to execute arbitrary OS commands via the urn: to the M-SEARCH method in ssdpcgi() in /htdocs/cgibin, because REMOTE_PORT is mishandled. The value of the urn: service/device is checked with the strstr function, which allows an attacker to concatenate arbitrary commands separated by shell metacharacters.

Action-Not Available
Vendor-n/aD-Link Corporation
Product-dir-859_firmwaredir-859n/a
CWE ID-CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVE-2020-19319
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.44% / 63.13%
||
7 Day CHG~0.00%
Published-11 Sep, 2023 | 00:00
Updated-26 Sep, 2024 | 15:31
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Buffer overflow vulnerability in DLINK 619L version B 2.06beta via the FILECODE parameter on login.

Action-Not Available
Vendor-n/aD-Link Corporation
Product-dir-619ldir-619l_firmwaren/a202l
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVE-2022-26670
Matching Score-8
Assigner-TWCERT/CC
ShareView Details
Matching Score-8
Assigner-TWCERT/CC
CVSS Score-8.8||HIGH
EPSS-4.04% / 88.55%
||
7 Day CHG~0.00%
Published-07 Apr, 2022 | 18:22
Updated-17 Sep, 2024 | 03:07
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
D-Link DIR-878 - Command Injection

D-Link DIR-878 has inadequate filtering for special characters in the webpage input field. An unauthenticated LAN attacker can perform command injection attack to execute arbitrary system commands to control the system or disrupt service.

Action-Not Available
Vendor-D-Link Corporation
Product-dir-878dir-878_firmwareDIR-878
CWE ID-CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVE-2020-15633
Matching Score-8
Assigner-Zero Day Initiative
ShareView Details
Matching Score-8
Assigner-Zero Day Initiative
CVSS Score-8.8||HIGH
EPSS-0.71% / 72.22%
||
7 Day CHG~0.00%
Published-23 Jul, 2020 | 20:45
Updated-04 Aug, 2024 | 13:22
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-867, DIR-878, and DIR-882 routers with firmware 1.20B10_BETA. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of HNAP requests. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the router. Was ZDI-CAN-10835.

Action-Not Available
Vendor-D-Link Corporation
Product-dir-878dir-882dir-878_firmwaredir-867_firmwaredir-867dir-882_firmwareMultiple Routers
CWE ID-CWE-288
Authentication Bypass Using an Alternate Path or Channel
CVE-2020-15892
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.92% / 76.07%
||
7 Day CHG~0.00%
Published-22 Jul, 2020 | 18:56
Updated-04 Aug, 2024 | 13:30
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An issue was discovered in apply.cgi on D-Link DAP-1520 devices before 1.10b04Beta02. Whenever a user performs a login action from the web interface, the request values are being forwarded to the ssi binary. On the login page, the web interface restricts the password input field to a fixed length of 15 characters. The problem is that validation is being done on the client side, hence it can be bypassed. When an attacker manages to intercept the login request (POST based) and tampers with the vulnerable parameter (log_pass), to a larger length, the request will be forwarded to the webserver. This results in a stack-based buffer overflow. A few other POST variables, (transferred as part of the login request) are also vulnerable: html_response_page and log_user.

Action-Not Available
Vendor-n/aD-Link Corporation
Product-dap-1520dap-1520_firmwaren/a
CWE ID-CWE-787
Out-of-bounds Write
CWE ID-CWE-669
Incorrect Resource Transfer Between Spheres
CVE-2023-44809
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-2.45% / 85.28%
||
7 Day CHG~0.00%
Published-16 Oct, 2023 | 00:00
Updated-17 Sep, 2024 | 02:35
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

D-Link device DIR-820L 1.05B03 is vulnerable to Insecure Permissions.

Action-Not Available
Vendor-n/aD-Link Corporation
Product-dir-820l_firmwaredir-820ln/adir-820l
CWE ID-CWE-269
Improper Privilege Management
CVE-2023-44807
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-3.25% / 87.19%
||
7 Day CHG~0.00%
Published-06 Oct, 2023 | 00:00
Updated-19 Sep, 2024 | 16:24
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

D-Link DIR-820L 1.05B03 has a stack overflow vulnerability in the cancelPing function.

Action-Not Available
Vendor-n/aD-Link Corporation
Product-dir-820l_firmwaredir-820ln/adir-820l
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-45572
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-8.15% / 92.20%
||
7 Day CHG~0.00%
Published-16 Oct, 2023 | 00:00
Updated-02 Aug, 2024 | 20:21
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Buffer Overflow vulnerability in D-Link device DI-7003GV2.D1 v.23.08.25D1 and before, DI-7100G+V2.D1 v.23.08.23D1 and before, DI-7100GV2.D1 v.23.08.23D1, DI-7200G+V2.D1 v.23.08.23D1 and before, DI-7200GV2.E1 v.23.08.23E1 and before, DI-7300G+V2.D1 v.23.08.23D1, and DI-7400G+V2.D1 v.23.08.23D1 and before allows a remote attacker to execute arbitrary code via the fn parameter of the tgfile.htm function.

Action-Not Available
Vendor-n/aD-Link Corporation
Product-di-7200gdi-7200g_firmwaredi-7100gdi-7100g\+di-7100g_firmwaredi-7300g\+_firmwaredi-7400g\+di-7003g_firmwaredi-7200g\+di-7003gdi-7400g\+_firmwaredi-7300g\+di-7200g\+_firmwaredi-7100g\+_firmwaren/a
CWE ID-CWE-787
Out-of-bounds Write
CVE-2020-15632
Matching Score-8
Assigner-Zero Day Initiative
ShareView Details
Matching Score-8
Assigner-Zero Day Initiative
CVSS Score-8.8||HIGH
EPSS-4.20% / 88.78%
||
7 Day CHG~0.00%
Published-23 Jul, 2020 | 20:45
Updated-04 Aug, 2024 | 13:22
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-842 3.13B05 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of HNAP GetCAPTCHAsetting requests. The issue results from the lack of proper handling of sessions. An attacker can leverage this vulnerability to execute arbitrary code in the context of the device. Was ZDI-CAN-10083.

Action-Not Available
Vendor-D-Link Corporation
Product-dir-842dir-842_firmwareDIR-842
CWE ID-CWE-303
Incorrect Implementation of Authentication Algorithm
CVE-2025-2549
Matching Score-8
Assigner-VulDB
ShareView Details
Matching Score-8
Assigner-VulDB
CVSS Score-5.3||MEDIUM
EPSS-0.39% / 60.18%
||
7 Day CHG+0.13%
Published-20 Mar, 2025 | 16:31
Updated-15 Jul, 2025 | 18:42
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
D-Link DIR-618/DIR-605L formSetPassword access control

A vulnerability has been found in D-Link DIR-618 and DIR-605L 2.02/3.02 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file /goform/formSetPassword. The manipulation leads to improper access controls. The attack needs to be done within the local network. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Action-Not Available
Vendor-D-Link Corporation
Product-dir-605ldir-605l_firmwaredir-618_firmwaredir-618DIR-618DIR-605L
CWE ID-CWE-266
Incorrect Privilege Assignment
CWE ID-CWE-284
Improper Access Control
CVE-2022-26258
Matching Score-8
Assigner-MITRE Corporation
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Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-87.16% / 99.45%
||
7 Day CHG~0.00%
Published-27 Mar, 2022 | 00:00
Updated-03 Nov, 2025 | 15:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Known KEV||Action Due Date - 2022-09-29||The impacted product is end-of-life and should be disconnected if still in use.

D-Link DIR-820L 1.05B03 was discovered to contain remote command execution (RCE) vulnerability via HTTP POST to get set ccp.

Action-Not Available
Vendor-n/aD-Link Corporation
Product-dir-820ldir-820l_firmwaren/aDIR-820L
CWE ID-CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVE-2019-18666
Matching Score-8
Assigner-MITRE Corporation
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Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-3.52% / 87.70%
||
7 Day CHG~0.00%
Published-15 May, 2020 | 17:18
Updated-05 Aug, 2024 | 01:54
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An issue was discovered on D-Link DAP-1360 revision F devices. Remote attackers can start a telnet service without authorization via an undocumented HTTP request. Although this is the primary vulnerability, the impact depends on the firmware version. Versions 609EU through 613EUbeta were tested. Versions through 6.12b01 have weak root credentials, allowing an attacker to gain remote root access. After 6.12b01, the root credentials were changed but the telnet service can still be started without authorization.

Action-Not Available
Vendor-n/aD-Link Corporation
Product-dap-1360_revision_f_firmwaredap-1360_revision_fn/a
CWE ID-CWE-306
Missing Authentication for Critical Function
CVE-2025-2621
Matching Score-8
Assigner-VulDB
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Matching Score-8
Assigner-VulDB
CVSS Score-9.3||CRITICAL
EPSS-0.36% / 58.05%
||
7 Day CHG-0.38%
Published-22 Mar, 2025 | 16:31
Updated-26 Mar, 2025 | 18:43
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
D-Link DAP-1620 storage check_dws_cookie stack-based overflow

A vulnerability was found in D-Link DAP-1620 1.03 and classified as critical. This issue affects the function check_dws_cookie of the file /storage. The manipulation of the argument uid leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Action-Not Available
Vendor-D-Link Corporation
Product-dap-1620dap-1620_firmwareDAP-1620
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2025-25744
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-1.08% / 77.98%
||
7 Day CHG~0.00%
Published-12 Feb, 2025 | 00:00
Updated-05 Mar, 2025 | 19:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

D-Link DIR-853 A1 FW1.20B07 was discovered to contain a stack-based buffer overflow vulnerability via the Password parameter in the SetDynamicDNSSettings module.

Action-Not Available
Vendor-n/aD-Link Corporation
Product-dir-853_firmwaredir-853n/a
CWE ID-CWE-787
Out-of-bounds Write
CVE-2025-2619
Matching Score-8
Assigner-VulDB
ShareView Details
Matching Score-8
Assigner-VulDB
CVSS Score-9.3||CRITICAL
EPSS-0.36% / 58.05%
||
7 Day CHG-0.38%
Published-22 Mar, 2025 | 14:00
Updated-26 Mar, 2025 | 18:46
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
D-Link DAP-1620 Cookie storage check_dws_cookie stack-based overflow

A vulnerability, which was classified as critical, was found in D-Link DAP-1620 1.03. This affects the function check_dws_cookie of the file /storage of the component Cookie Handler. The manipulation leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Action-Not Available
Vendor-D-Link Corporation
Product-dap-1620dap-1620_firmwareDAP-1620
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
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