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Vulnerability Details :

CVE-2022-38955

Summary
Assigner-mitre
Assigner Org ID-8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At-20 Sep, 2022 | 17:47
Updated At-28 May, 2025 | 16:00
Rejected At-
Credits

An exploitable firmware modification vulnerability was discovered on the Netgear WPN824EXT WiFi Range Extender. An attacker can conduct a MITM attack to modify the user-uploaded firmware image and bypass the CRC check. A successful attack can either introduce a backdoor to the device or make the device DoS. This affects Firmware Version: 1.1.1_1.1.9.

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:mitre
Assigner Org ID:8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At:20 Sep, 2022 | 17:47
Updated At:28 May, 2025 | 16:00
Rejected At:
▼CVE Numbering Authority (CNA)

An exploitable firmware modification vulnerability was discovered on the Netgear WPN824EXT WiFi Range Extender. An attacker can conduct a MITM attack to modify the user-uploaded firmware image and bypass the CRC check. A successful attack can either introduce a backdoor to the device or make the device DoS. This affects Firmware Version: 1.1.1_1.1.9.

Affected Products
Vendor
n/a
Product
n/a
Versions
Affected
  • n/a
Problem Types
TypeCWE IDDescription
textN/An/a
Type: text
CWE ID: N/A
Description: n/a
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.netgear.com/about/security/
x_refsource_MISC
https://hackmd.io/%40eupX2KdkT6iNpqJUWk9p4A/SyAnOSd1s
x_refsource_MISC
Hyperlink: https://www.netgear.com/about/security/
Resource:
x_refsource_MISC
Hyperlink: https://hackmd.io/%40eupX2KdkT6iNpqJUWk9p4A/SyAnOSd1s
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
1. 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://www.netgear.com/about/security/
x_refsource_MISC
x_transferred
https://hackmd.io/%40eupX2KdkT6iNpqJUWk9p4A/SyAnOSd1s
x_refsource_MISC
x_transferred
Hyperlink: https://www.netgear.com/about/security/
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://hackmd.io/%40eupX2KdkT6iNpqJUWk9p4A/SyAnOSd1s
Resource:
x_refsource_MISC
x_transferred
2. CISA ADP Vulnrichment
Affected Products
Problem Types
TypeCWE IDDescription
CWECWE-354CWE-354 Improper Validation of Integrity Check Value
Type: CWE
CWE ID: CWE-354
Description: CWE-354 Improper Validation of Integrity Check Value
Metrics
VersionBase scoreBase severityVector
3.17.5HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/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
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cve@mitre.org
Published At:20 Sep, 2022 | 18:15
Updated At:28 May, 2025 | 16:15

An exploitable firmware modification vulnerability was discovered on the Netgear WPN824EXT WiFi Range Extender. An attacker can conduct a MITM attack to modify the user-uploaded firmware image and bypass the CRC check. A successful attack can either introduce a backdoor to the device or make the device DoS. This affects Firmware Version: 1.1.1_1.1.9.

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
Primary3.17.5HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Secondary3.17.5HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Type: Primary
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CPE Matches
NETGEAR, Inc.
netgear
>>wpn824ext_firmware>>1.1.1_1.1.9
cpe:2.3:o:netgear:wpn824ext_firmware:1.1.1_1.1.9:*:*:*:*:*:*:*
NETGEAR, Inc.
netgear
>>wpn824ext>>-
cpe:2.3:h:netgear:wpn824ext:-:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-354Primarynvd@nist.gov
CWE-354Secondary134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE ID: CWE-354
Type: Primary
Source: nvd@nist.gov
CWE ID: CWE-354
Type: Secondary
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://hackmd.io/%40eupX2KdkT6iNpqJUWk9p4A/SyAnOSd1scve@mitre.org
N/A
https://www.netgear.com/about/security/cve@mitre.org
Vendor Advisory
https://hackmd.io/%40eupX2KdkT6iNpqJUWk9p4A/SyAnOSd1saf854a3a-2127-422b-91ae-364da2661108
N/A
https://www.netgear.com/about/security/af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Hyperlink: https://hackmd.io/%40eupX2KdkT6iNpqJUWk9p4A/SyAnOSd1s
Source: cve@mitre.org
Resource: N/A
Hyperlink: https://www.netgear.com/about/security/
Source: cve@mitre.org
Resource:
Vendor Advisory
Hyperlink: https://hackmd.io/%40eupX2KdkT6iNpqJUWk9p4A/SyAnOSd1s
Source: af854a3a-2127-422b-91ae-364da2661108
Resource: N/A
Hyperlink: https://www.netgear.com/about/security/
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Vendor Advisory

Change History

0
Information is not available yet

Similar CVEs

3Records found
CVE-2022-38956
Matching Score-6
Assigner-MITRE Corporation
ShareView Details
Matching Score-6
Assigner-MITRE Corporation
CVSS Score-5.3||MEDIUM
EPSS-0.15% / 36.64%
||
7 Day CHG~0.00%
Published-20 Sep, 2022 | 17:46
Updated-28 May, 2025 | 17:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An exploitable firmware downgrade vulnerability was discovered on the Netgear WPN824EXT WiFi Range Extender. An attacker can conduct a MITM attack to replace the user-uploaded firmware image with an original old firmware image. This affects Firmware 1.1.1_1.1.9 and earlier.

Action-Not Available
Vendor-n/aNETGEAR, Inc.
Product-wpn824ext_firmwarewpn824extn/a
CWE ID-CWE-354
Improper Validation of Integrity Check Value
CVE-2021-41067
Matching Score-4
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ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-7.5||HIGH
EPSS-0.20% / 42.43%
||
7 Day CHG~0.00%
Published-14 Dec, 2021 | 15:31
Updated-04 Aug, 2024 | 02:59
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 Listary through 6. Improper implementation of the update process leads to the download of software updates with a /check-update HTTP-based connection. This can be exploited with MITM techniques. Together with the lack of package validation, it can lead to manipulation of update packages that can cause an installation of malicious content.

Action-Not Available
Vendor-listaryn/a
Product-listaryn/a
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Improper Validation of Integrity Check Value
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Matching Score-4
Assigner-Zoom Video Communications, Inc.
ShareView Details
Matching Score-4
Assigner-Zoom Video Communications, Inc.
CVSS Score-7.5||HIGH
EPSS-0.32% / 54.20%
||
7 Day CHG~0.00%
Published-28 Apr, 2022 | 14:59
Updated-16 Sep, 2024 | 21:03
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Update package downgrade in Zoom Client for Meetings for MacOS

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Action-Not Available
Vendor-Zoom Communications, Inc.
Product-meetingsZoom Client for Meetings for MacOS (Standard and for IT Admin)
CWE ID-CWE-354
Improper Validation of Integrity Check Value
Details not found