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Vulnerability Details :

CVE-2021-21827

Summary
Assigner-talos
Assigner Org ID-b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b
Published At-20 Aug, 2021 | 21:03
Updated At-03 Aug, 2024 | 18:23
Rejected At-
Credits

A heap-based buffer overflow vulnerability exists in the XML Decompression DecodeTreeBlock functionality of AT&T Labs Xmill 0.7. Within `DecodeTreeBlock` which is called during the decompression of an XMI file, a UINT32 is loaded from the file and used as trusted input as the length of a buffer. An attacker can provide a malicious file to trigger this vulnerability.

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)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:talos
Assigner Org ID:b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b
Published At:20 Aug, 2021 | 21:03
Updated At:03 Aug, 2024 | 18:23
Rejected At:
▼CVE Numbering Authority (CNA)

A heap-based buffer overflow vulnerability exists in the XML Decompression DecodeTreeBlock functionality of AT&T Labs Xmill 0.7. Within `DecodeTreeBlock` which is called during the decompression of an XMI file, a UINT32 is loaded from the file and used as trusted input as the length of a buffer. An attacker can provide a malicious file to trigger this vulnerability.

Affected Products
Vendor
n/a
Product
AT&T
Versions
Affected
  • AT&T Labs Xmill 0.7, Schneider Electric EcoStruxure Control Expert 15
Problem Types
TypeCWE IDDescription
CWECWE-120CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Type: CWE
CWE ID: CWE-120
Description: CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Metrics
VersionBase scoreBase severityVector
3.08.1HIGH
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Version: 3.0
Base score: 8.1
Base severity: HIGH
Vector:
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1291
x_refsource_MISC
Hyperlink: https://talosintelligence.com/vulnerability_reports/TALOS-2021-1291
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CVE Program Container
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://talosintelligence.com/vulnerability_reports/TALOS-2021-1291
x_refsource_MISC
x_transferred
Hyperlink: https://talosintelligence.com/vulnerability_reports/TALOS-2021-1291
Resource:
x_refsource_MISC
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:talos-cna@cisco.com
Published At:20 Aug, 2021 | 22:15
Updated At:31 May, 2022 | 22:08

A heap-based buffer overflow vulnerability exists in the XML Decompression DecodeTreeBlock functionality of AT&T Labs Xmill 0.7. Within `DecodeTreeBlock` which is called during the decompression of an XMI file, a UINT32 is loaded from the file and used as trusted input as the length of a buffer. An attacker can provide a malicious file to trigger this vulnerability.

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
Primary3.19.8CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Secondary3.08.1HIGH
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary2.07.5HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
Type: Primary
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: Secondary
Version: 3.0
Base score: 8.1
Base severity: HIGH
Vector:
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Type: Primary
Version: 2.0
Base score: 7.5
Base severity: HIGH
Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P
CPE Matches

att
att
>>xmill>>0.7
cpe:2.3:a:att:xmill:0.7:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-787Primarynvd@nist.gov
CWE-120Secondarytalos-cna@cisco.com
CWE ID: CWE-787
Type: Primary
Source: nvd@nist.gov
CWE ID: CWE-120
Type: Secondary
Source: talos-cna@cisco.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1291talos-cna@cisco.com
Exploit
Third Party Advisory
Hyperlink: https://talosintelligence.com/vulnerability_reports/TALOS-2021-1291
Source: talos-cna@cisco.com
Resource:
Exploit
Third Party Advisory

Change History

0
Information is not available yet

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||
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Rejected-Not Available
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||
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Rejected-Not Available
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Action-Not Available
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Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE ID-CWE-124
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CVE-2021-27705
Matching Score-4
Assigner-MITRE Corporation
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Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-2.94% / 85.69%
||
7 Day CHG~0.00%
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Updated-03 Aug, 2024 | 21:26
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-4
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Rejected-Not Available
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Vendor-n/aSiemens AGAruba Networks
Product-arubaosscalance_w1750d_firmwareinstantscalance_w1750dAruba Access Points: 100 Series; 103 Series; 110 Series; 120 Series; 130 Series; 200 Series; 207 Series; 210 Series; 220 Series; 260 Series; 300 Series; 303 Series; 310 Series; 318 Series Hardened Access Points; 320 Series; 330 Series; 340 Series; 370 Series; 500 Series; 510 Series; 530 Series; 550 Series; 630 Series; 650 Series;
CWE ID-CWE-120
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CVE-2021-26691
Matching Score-4
Assigner-Apache Software Foundation
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Matching Score-4
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CVSS Score-9.8||CRITICAL
EPSS-68.07% / 99.25%
||
7 Day CHG~0.00%
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Rejected-Not Available
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CWE ID-CWE-121
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Improper Control of Generation of Code ('Code Injection')
CWE ID-CWE-787
Out-of-bounds Write
CWE ID-CWE-77
Improper Neutralization of Special Elements used in a Command ('Command Injection')
CVE-2021-26623
Matching Score-4
Assigner-KrCERT/CC
ShareView Details
Matching Score-4
Assigner-KrCERT/CC
CVSS Score-7.8||HIGH
EPSS-1.06% / 61.14%
||
7 Day CHG~0.00%
Published-01 Apr, 2022 | 22:17
Updated-03 Aug, 2024 | 20:26
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Bandisoft ARK Library Out-of-bound Vulnerability

A remote code execution vulnerability due to incomplete check for 'xheader_decode_path_record' function's parameter length value in the ark library. Remote attackers can induce exploit malicious code using this function.

Action-Not Available
Vendor-Bandisoft International Inc.Microsoft Corporation
Product-windowsbandizipBandizip
CWE ID-CWE-787
Out-of-bounds Write
CWE ID-CWE-125
Out-of-bounds Read
CVE-2022-38314
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.97% / 58.32%
||
7 Day CHG~0.00%
Published-07 Sep, 2022 | 18:40
Updated-03 Aug, 2024 | 10:54
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Tenda AC18 router v15.03.05.19 and v15.03.05.05 was discovered to contain a stack overflow via the urls parameter at /goform/saveParentControlInfo.

Action-Not Available
Vendor-n/aTenda Technology Co., Ltd.
Product-ac18_firmwareac18n/a
CWE ID-CWE-787
Out-of-bounds Write
CVE-2021-26951
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-1.73% / 75.17%
||
7 Day CHG~0.00%
Published-09 Feb, 2021 | 22:07
Updated-03 Aug, 2024 | 20:33
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 the calamine crate before 0.17.0 for Rust. It allows attackers to overwrite heap-memory locations because Vec::set_len is used without proper memory claiming, and this uninitialized memory is used for a user-provided Read operation, as demonstrated by Sectors::get.

Action-Not Available
Vendor-calamine_projectn/a
Product-calaminen/a
CWE ID-CWE-787
Out-of-bounds Write
CWE ID-CWE-908
Use of Uninitialized Resource
CVE-2025-68670
Matching Score-4
Assigner-GitHub, Inc.
ShareView Details
Matching Score-4
Assigner-GitHub, Inc.
CVSS Score-9.1||CRITICAL
EPSS-1.32% / 67.80%
||
7 Day CHG~0.00%
Published-27 Jan, 2026 | 15:52
Updated-06 Feb, 2026 | 19:59
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
xrdp improperly checks bounds of domain string length, which leads to Stack-based Buffer Overflow

xrdp is an open source RDP server. xrdp before v0.10.5 contains an unauthenticated stack-based buffer overflow vulnerability. The issue stems from improper bounds checking when processing user domain information during the connection sequence. If exploited, the vulnerability could allow remote attackers to execute arbitrary code on the target system. The vulnerability allows an attacker to overwrite the stack buffer and the return address, which could theoretically be used to redirect the execution flow. The impact of this vulnerability is lessened if a compiler flag has been used to build the xrdp executable with stack canary protection. If this is the case, a second vulnerability would need to be used to leak the stack canary value. Upgrade to version 0.10.5 to receive a patch. Additionally, do not rely on stack canary protection on production systems.

Action-Not Available
Vendor-neutrinolabsneutrinolabsDebian GNU/Linux
Product-xrdpdebian_linuxxrdp
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2021-26728
Matching Score-4
Assigner-Nozomi Networks Inc.
ShareView Details
Matching Score-4
Assigner-Nozomi Networks Inc.
CVSS Score-10||CRITICAL
EPSS-2.28% / 81.34%
||
7 Day CHG~0.00%
Published-24 Oct, 2022 | 00:00
Updated-03 Aug, 2024 | 20:33
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
spx_restservice KillDupUsr_func Command Injection and Stack-Based Buffer Overflow

Command injection and stack-based buffer overflow vulnerabilities in the KillDupUsr_func function of spx_restservice allow an attacker to execute arbitrary code with the same privileges as the server user (root). This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.

Action-Not Available
Vendor-lannerincLanner Inc
Product-iac-ast2500a_firmwareiac-ast2500aIAC-AST2500A
CWE ID-CWE-94
Improper Control of Generation of Code ('Code Injection')
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CWE ID-CWE-77
Improper Neutralization of Special Elements used in a Command ('Command Injection')
CVE-2021-26730
Matching Score-4
Assigner-Nozomi Networks Inc.
ShareView Details
Matching Score-4
Assigner-Nozomi Networks Inc.
CVSS Score-10||CRITICAL
EPSS-0.98% / 58.48%
||
7 Day CHG~0.00%
Published-24 Oct, 2022 | 00:00
Updated-07 May, 2025 | 15:40
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
spx_restservice Login_handler_func Subfunction Stack-Based Buffer Overflow

A stack-based buffer overflow vulnerability in a subfunction of the Login_handler_func function of spx_restservice allows an attacker to execute arbitrary code with the same privileges as the server user (root). This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.

Action-Not Available
Vendor-lannerincLanner Inc
Product-iac-ast2500a_firmwareiac-ast2500aIAC-AST2500A
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2021-27171
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-17.84% / 96.86%
||
7 Day CHG~0.00%
Published-10 Feb, 2021 | 18:35
Updated-03 Aug, 2024 | 20:40
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 FiberHome HG6245D devices through RP2613. It is possible to start a Linux telnetd as root on port 26/tcp by using the CLI interface commands of ddd and shell (or tshell).

Action-Not Available
Vendor-fiberhomen/a
Product-hg6245dhg6245d_firmwaren/a
CWE ID-CWE-787
Out-of-bounds Write
CVE-2021-27697
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-1.27% / 66.77%
||
7 Day CHG~0.00%
Published-06 Apr, 2021 | 12:07
Updated-03 Aug, 2024 | 21:26
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

RIOT-OS 2021.01 contains a buffer overflow vulnerability in sys/net/gnrc/routing/rpl/gnrc_rpl_validation.c through the gnrc_rpl_validation_options() function.

Action-Not Available
Vendor-riot-osn/a
Product-riotn/a
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVE-2025-66647
Matching Score-4
Assigner-GitHub, Inc.
ShareView Details
Matching Score-4
Assigner-GitHub, Inc.
CVSS Score-1.7||LOW
EPSS-0.85% / 54.30%
||
7 Day CHG+0.03%
Published-17 Dec, 2025 | 20:21
Updated-22 Jan, 2026 | 16:30
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
RIOT OS has buffer overflow in gnrc_ipv6_ext_frag_reass

RIOT is an open-source microcontroller operating system, designed to match the requirements of Internet of Things (IoT) devices and other embedded devices. A vulnerability was discovered in the IPv6 fragmentation reassembly implementation of RIOT OS v2025.07. When copying the contents of the first fragment (offset=0) into the reassembly buffer, no size check is performed. It is possible to force the creation of a small reassembly buffer by first sending a shorter fragment (also with offset=0). Overflowing the reassembly buffer corrupts the state of other packet buffers which an attacker might be able to used to achieve further memory corruption (potentially resulting in remote code execution). To trigger the vulnerability, the `gnrc_ipv6_ext_frag` module must be included and the attacker must be able to send arbitrary IPv6 packets to the victim. Version 2025.10 fixes the issue.

Action-Not Available
Vendor-riot-osRIOT-OS
Product-riotRIOT
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVE-2025-67186
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.69% / 49.12%
||
7 Day CHG~0.00%
Published-03 Feb, 2026 | 00:00
Updated-10 Feb, 2026 | 14:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

TOTOLINK A950RG V4.1.2cu.5204_B20210112 contains a buffer overflow vulnerability in the setUrlFilterRules interface of /lib/cste_modules/firewall.so. The vulnerability occurs because the `url` parameter is not properly validated for length, allowing remote attackers to trigger a buffer overflow, potentially leading to arbitrary code execution or denial of service.

Action-Not Available
Vendor-n/aTOTOLINK
Product-a950rg_firmwarea950rgn/a
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVE-2025-66043
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-9.8||CRITICAL
EPSS-0.49% / 39.48%
||
7 Day CHG~0.00%
Published-11 Dec, 2025 | 16:43
Updated-17 Dec, 2025 | 20:24
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Several stack-based buffer overflow vulnerabilities exists in the MFER parsing functionality of The Biosig Project libbiosig 3.9.1. A specially crafted MFER file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger these vulnerabilities.When Tag is 3

Action-Not Available
Vendor-libbiosig_projectThe Biosig Project
Product-libbiosiglibbiosig
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2021-26727
Matching Score-4
Assigner-Nozomi Networks Inc.
ShareView Details
Matching Score-4
Assigner-Nozomi Networks Inc.
CVSS Score-10||CRITICAL
EPSS-2.28% / 81.34%
||
7 Day CHG~0.00%
Published-24 Oct, 2022 | 00:00
Updated-07 May, 2025 | 14:59
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
spx_restservice SubNet_handler_func Multiple Command Injections and Stack-Based Buffer Overflows

Multiple command injections and stack-based buffer overflows vulnerabilities in the SubNet_handler_func function of spx_restservice allow an attacker to execute arbitrary code with the same privileges as the server user (root). This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.

Action-Not Available
Vendor-lannerincLanner Inc
Product-iac-ast2500a_firmwareiac-ast2500aIAC-AST2500A
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-94
Improper Control of Generation of Code ('Code Injection')
CWE ID-CWE-787
Out-of-bounds Write
CWE ID-CWE-77
Improper Neutralization of Special Elements used in a Command ('Command Injection')
CVE-2021-27706
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-2.83% / 85.12%
||
7 Day CHG~0.00%
Published-14 Apr, 2021 | 14:55
Updated-03 Aug, 2024 | 21:26
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Buffer Overflow in Tenda G1 and G3 routers with firmware version V15.11.0.17(9502)_CN allows remote attackers to execute arbitrary code via a crafted action/"IPMacBindIndex "request. This occurs because the "formIPMacBindDel" function directly passes the parameter "IPMacBindIndex" to strcpy without limit.

Action-Not Available
Vendor-n/aTenda Technology Co., Ltd.
Product-g3g1_firmwareg1g3_firmwaren/a
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVE-2025-66047
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-9.8||CRITICAL
EPSS-0.47% / 38.17%
||
7 Day CHG~0.00%
Published-11 Dec, 2025 | 16:43
Updated-17 Dec, 2025 | 20:24
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Several stack-based buffer overflow vulnerabilities exists in the MFER parsing functionality of The Biosig Project libbiosig 3.9.1. A specially crafted MFER file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger these vulnerabilities.When Tag is 131

Action-Not Available
Vendor-libbiosig_projectThe Biosig Project
Product-libbiosiglibbiosig
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2025-66046
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-9.8||CRITICAL
EPSS-0.47% / 38.17%
||
7 Day CHG~0.00%
Published-11 Dec, 2025 | 16:43
Updated-17 Dec, 2025 | 20:24
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Several stack-based buffer overflow vulnerabilities exists in the MFER parsing functionality of The Biosig Project libbiosig 3.9.1. A specially crafted MFER file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger these vulnerabilities.When Tag is 67

Action-Not Available
Vendor-libbiosig_projectThe Biosig Project
Product-libbiosiglibbiosig
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2021-26777
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-2.44% / 82.63%
||
7 Day CHG~0.00%
Published-02 Dec, 2021 | 03:26
Updated-03 Aug, 2024 | 20:33
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 function SetFirewall in index.cgi in CIRCUTOR COMPACT DC-S BASIC smart metering concentrator Firwmare version CIR_CDC_v1.2.17, allows attackers to execute arbitrary code.

Action-Not Available
Vendor-circutorn/a
Product-compact_dc-s_basic_firmwarecompact_dc-s_basicn/a
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVE-2021-26731
Matching Score-4
Assigner-Nozomi Networks Inc.
ShareView Details
Matching Score-4
Assigner-Nozomi Networks Inc.
CVSS Score-9.1||CRITICAL
EPSS-2.31% / 81.55%
||
7 Day CHG~0.00%
Published-24 Oct, 2022 | 00:00
Updated-07 May, 2025 | 15:42
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
spx_restservice modifyUserb_func Command Injection and Multiple Stack-Based Buffer Overflows

Command injection and multiple stack-based buffer overflows vulnerabilities in the modifyUserb_func function of spx_restservice allow an authenticated attacker to execute arbitrary code with the same privileges as the server user (root). This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.

Action-Not Available
Vendor-lannerincLanner Inc
Product-iac-ast2500a_firmwareiac-ast2500aIAC-AST2500A
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-94
Improper Control of Generation of Code ('Code Injection')
CWE ID-CWE-787
Out-of-bounds Write
CWE ID-CWE-77
Improper Neutralization of Special Elements used in a Command ('Command Injection')
CVE-2021-27114
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-24.55% / 97.65%
||
7 Day CHG~0.00%
Published-14 Apr, 2021 | 13:54
Updated-03 Aug, 2024 | 20:40
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 D-Link DIR-816 A2 1.10 B05 devices. Within the handler function of the /goform/addassignment route, a very long text entry for the"'s_ip" and "s_mac" fields could lead to a Stack-Based Buffer Overflow and overwrite the return address.

Action-Not Available
Vendor-n/aD-Link Corporation
Product-dir-816_firmwaredir-816n/a
CWE ID-CWE-787
Out-of-bounds Write
CVE-2025-66216
Matching Score-4
Assigner-GitHub, Inc.
ShareView Details
Matching Score-4
Assigner-GitHub, Inc.
CVSS Score-9.3||CRITICAL
EPSS-0.45% / 36.88%
||
7 Day CHG+0.01%
Published-29 Nov, 2025 | 01:57
Updated-23 Dec, 2025 | 16:13
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
AIS-catcher has a Buffer Overflow vulnerability in `AIS::Message` leading to DoS/RCE

AIS-catcher is a multi-platform AIS receiver. Prior to version 0.64, a heap buffer overflow vulnerability has been identified in the AIS::Message class of AIS-catcher. This vulnerability allows an attacker to write approximately 1KB of arbitrary data into a 128-byte buffer. This issue has been patched in version 0.64.

Action-Not Available
Vendor-aiscatcherjvde-github
Product-ais-catcherAIS-catcher
CWE ID-CWE-131
Incorrect Calculation of Buffer Size
CWE ID-CWE-787
Out-of-bounds Write
CVE-2021-26709
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-40.08% / 98.49%
||
7 Day CHG~0.00%
Published-07 Apr, 2021 | 10:45
Updated-03 Aug, 2024 | 21:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

D-Link DSL-320B-D1 devices through EU_1.25 are prone to multiple Stack-Based Buffer Overflows that allow unauthenticated remote attackers to take over a device via the login.xgi user and pass parameters. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

Action-Not Available
Vendor-n/aD-Link Corporation
Product-dsl-320b-d1n/a
CWE ID-CWE-787
Out-of-bounds Write
CVE-2025-66590
Matching Score-4
Assigner-Cybersecurity and Infrastructure Security Agency (CISA) Industrial Control Systems (ICS)
ShareView Details
Matching Score-4
Assigner-Cybersecurity and Infrastructure Security Agency (CISA) Industrial Control Systems (ICS)
CVSS Score-8.4||HIGH
EPSS-0.32% / 24.69%
||
7 Day CHG~0.00%
Published-11 Dec, 2025 | 20:45
Updated-04 Jun, 2026 | 21:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Out-of-bounds Write vulnerability in AzeoTech DAQFactory

In AzeoTech DAQFactory release 20.7 (Build 2555), an out-of-bounds write vulnerability can be exploited by an attacker to cause the program to write data past the end of an allocated memory buffer. This can lead to arbitrary code execution or a system crash.

Action-Not Available
Vendor-azeotechAzeoTech
Product-daqfactoryDAQFactory
CWE ID-CWE-787
Out-of-bounds Write
CVE-2025-67188
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.63% / 46.35%
||
7 Day CHG~0.00%
Published-03 Feb, 2026 | 00:00
Updated-10 Feb, 2026 | 14:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A buffer overflow vulnerability exists in TOTOLINK A950RG V4.1.2cu.5204_B20210112. The issue resides in the setRadvdCfg interface of the /lib/cste_modules/ipv6.so module. The function fails to properly validate the length of the user-controlled radvdinterfacename parameter, allowing remote attackers to trigger a stack buffer overflow.

Action-Not Available
Vendor-n/aTOTOLINK
Product-a950rg_firmwarea950rgn/a
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVE-2025-66044
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-9.8||CRITICAL
EPSS-0.47% / 38.17%
||
7 Day CHG~0.00%
Published-11 Dec, 2025 | 16:43
Updated-17 Dec, 2025 | 20:24
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Several stack-based buffer overflow vulnerabilities exists in the MFER parsing functionality of The Biosig Project libbiosig 3.9.1. A specially crafted MFER file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger these vulnerabilities.When Tag is 64

Action-Not Available
Vendor-libbiosig_projectThe Biosig Project
Product-libbiosiglibbiosig
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2026-7747
Matching Score-4
Assigner-VulDB
ShareView Details
Matching Score-4
Assigner-VulDB
CVSS Score-9.3||CRITICAL
EPSS-0.61% / 45.35%
||
7 Day CHG~0.00%
Published-04 May, 2026 | 08:15
Updated-04 May, 2026 | 15:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Totolink N300RH Parameter cstecgi.cgi loginauth buffer overflow

A security flaw has been discovered in Totolink N300RH 3.2.4-B20220812. Affected by this vulnerability is the function loginauth of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. Performing a manipulation of the argument Password results in buffer overflow. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks.

Action-Not Available
Vendor-TOTOLINK
Product-N300RH
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVE-2023-49425
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.92% / 56.71%
||
7 Day CHG~0.00%
Published-07 Dec, 2023 | 00:00
Updated-02 Aug, 2024 | 21:53
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Tenda AX12 V22.03.01.46 was discovered to contain a stack overflow via the deviceList parameter at /goform/setMacFilterCfg .

Action-Not Available
Vendor-n/aTenda Technology Co., Ltd.
Product-ax12_firmwareax12n/a
CWE ID-CWE-787
Out-of-bounds Write
CVE-2021-27391
Matching Score-4
Assigner-Siemens
ShareView Details
Matching Score-4
Assigner-Siemens
CVSS Score-9.8||CRITICAL
EPSS-3.37% / 87.48%
||
7 Day CHG~0.00%
Published-14 Sep, 2021 | 10:47
Updated-23 Apr, 2025 | 19:28
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A vulnerability has been identified in APOGEE MBC (PPC) (P2 Ethernet) (All versions >= V2.6.3), APOGEE MEC (PPC) (P2 Ethernet) (All versions >= V2.6.3), APOGEE PXC Compact (BACnet) (All versions < V3.5.3), APOGEE PXC Compact (P2 Ethernet) (All versions >= V2.8), APOGEE PXC Modular (BACnet) (All versions < V3.5.3), APOGEE PXC Modular (P2 Ethernet) (All versions >= V2.8), TALON TC Compact (BACnet) (All versions < V3.5.3), TALON TC Modular (BACnet) (All versions < V3.5.3). The web server of affected devices lacks proper bounds checking when parsing the Host parameter in HTTP requests, which could lead to a buffer overflow. An unauthenticated remote attacker could exploit this vulnerability to execute arbitrary code on the device with root privileges.

Action-Not Available
Vendor-Siemens AG
Product-apogee_pxc_compact_\(p2_ethernet\)apogee_pxc_modular_\(bacnet\)_firmwareapogee_pxc_compact_\(p2_ethernet\)_firmwaretalon_tc_compact_\(bacnet\)apogee_mbc_\(ppc\)_\(p2_ethernet\)_firmwareapogee_pxc_bacnet_automation_controllerapogee_mbc_\(ppc\)_\(p2_ethernet\)apogee_pxc_bacnet_automation_controller_firmwareapogee_mec_\(ppc\)_\(p2_ethernet\)talon_tc_compact_\(bacnet\)_firmwareapogee_pxc_modular_\(p2_ethernet\)talon_tc_modular_\(bacnet\)apogee_pxc_modular_\(p2_ethernet\)_firmwareapogee_pxc_modular_\(bacnet\)apogee_mec_\(ppc\)_\(p2_ethernet\)_firmwaretalon_tc_modular_\(bacnet\)_firmwareAPOGEE PXC Modular (P2 Ethernet)APOGEE PXC Compact (BACnet)APOGEE MEC (PPC) (P2 Ethernet)APOGEE PXC Modular (BACnet)APOGEE MBC (PPC) (P2 Ethernet)TALON TC Modular (BACnet)APOGEE PXC Compact (P2 Ethernet)TALON TC Compact (BACnet)
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVE-2025-66045
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-9.8||CRITICAL
EPSS-0.47% / 38.17%
||
7 Day CHG~0.00%
Published-11 Dec, 2025 | 16:43
Updated-17 Dec, 2025 | 20:24
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Several stack-based buffer overflow vulnerabilities exists in the MFER parsing functionality of The Biosig Project libbiosig 3.9.1. A specially crafted MFER file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger these vulnerabilities.When Tag is 65

Action-Not Available
Vendor-libbiosig_projectThe Biosig Project
Product-libbiosiglibbiosig
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2008-2371
Matching Score-4
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-4
Assigner-Red Hat, Inc.
CVSS Score-7.5||HIGH
EPSS-6.73% / 93.24%
||
7 Day CHG~0.00%
Published-07 Jul, 2008 | 23:00
Updated-23 Apr, 2026 | 00:35
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Heap-based buffer overflow in pcre_compile.c in the Perl-Compatible Regular Expression (PCRE) library 7.7 allows context-dependent attackers to cause a denial of service (crash) or possibly execute arbitrary code via a regular expression that begins with an option and contains multiple branches.

Action-Not Available
Vendor-pcren/aCanonical Ltd.openSUSEThe PHP GroupDebian GNU/LinuxFedora Project
Product-debian_linuxubuntu_linuxpcrephpfedoraopensusen/a
CWE ID-CWE-787
Out-of-bounds Write
CVE-2021-27410
Matching Score-4
Assigner-Cybersecurity and Infrastructure Security Agency (CISA) Industrial Control Systems (ICS)
ShareView Details
Matching Score-4
Assigner-Cybersecurity and Infrastructure Security Agency (CISA) Industrial Control Systems (ICS)
CVSS Score-9.8||CRITICAL
EPSS-1.86% / 76.99%
||
7 Day CHG~0.00%
Published-11 Jun, 2021 | 16:33
Updated-03 Aug, 2024 | 20:48
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The affected product is vulnerable to an out-of-bounds write, which may result in corruption of data or code execution on the Welch Allyn medical device management tools (Welch Allyn Service Tool: versions prior to v1.10, Welch Allyn Connex Device Integration Suite – Network Connectivity Engine (NCE): versions prior to v5.3, Welch Allyn Software Development Kit (SDK): versions prior to v3.2, Welch Allyn Connex Central Station (CS): versions prior to v1.8.6, Welch Allyn Service Monitor: versions prior to v1.7.0.0, Welch Allyn Connex Vital Signs Monitor (CVSM): versions prior to v2.43.02, Welch Allyn Connex Integrated Wall System (CIWS): versions prior to v2.43.02, Welch Allyn Connex Spot Monitor (CSM): versions prior to v1.52, Welch Allyn Spot Vital Signs 4400 Device (Spot 4400) / Welch Allyn Spot 4400 Vital Signs Extended Care Device: versions prior to v1.11.00).

Action-Not Available
Vendor-n/aHill-Rom Holdings, Inc.
Product-spot_vital_signs_4400connex_central_stationconnex_spot_monitorconnex_integrated_wall_systemservice_monitorsoftware_development_kitconnex_device_integration_suite_network_connectivity_engineconnex_vital_signs_monitorservice_toolWelch Allyn medical device management tools
CWE ID-CWE-787
Out-of-bounds Write
CVE-2025-66048
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-9.8||CRITICAL
EPSS-0.49% / 39.48%
||
7 Day CHG~0.00%
Published-11 Dec, 2025 | 16:43
Updated-17 Dec, 2025 | 20:23
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Several stack-based buffer overflow vulnerabilities exists in the MFER parsing functionality of The Biosig Project libbiosig 3.9.1. A specially crafted MFER file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger these vulnerabilities.When Tag is 133

Action-Not Available
Vendor-libbiosig_projectThe Biosig Project
Product-libbiosiglibbiosig
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
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