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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2025-9791 Detail

Description

A weakness has been identified in Tenda AC20 16.03.08.05. This vulnerability affects unknown code of the file /goform/fromAdvSetMacMtuWan. This manipulation of the argument wanMTU causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be exploited.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  VulDB
CVSS-BT 7.4 HIGH
Vector:  CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/Cpppq43/Tenda/blob/main/Tenda_AC20_V16.03.08.05.md CISA-ADP, VulDB Exploit  Third Party Advisory 
https://github.com/Cpppq43/Tenda/blob/main/Tenda_AC20_V16.03.08.05.md#poc CISA-ADP, VulDB Exploit  Third Party Advisory 
https://vuldb.com/?ctiid.322106 VulDB Permissions Required  VDB Entry 
https://vuldb.com/?id.322106 VulDB Third Party Advisory  VDB Entry 
https://vuldb.com/?submit.641088 VulDB Third Party Advisory  VDB Entry 
https://www.tenda.com.cn/ VulDB Product 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-787 Out-of-bounds Write cwe source acceptance level NIST  
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer VulDB  
CWE-121 Stack-based Buffer Overflow VulDB  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-9791
NVD Published Date:
09/01/2025
NVD Last Modified:
09/04/2025
Source:
VulDB