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CVE-2025-9791

Published: Sep 1, 2025

Modified: Sep 2, 2025

PUBLISHED

CVSS v3.1

8.8

HIGH

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.

Vendor	Product	Versions
Tenda	AC20	affected `16.03.08.05`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

VDB-322106 | Tenda AC20 fromAdvSetMacMtuWan stack-based overflow

vdb-entry

technical-description

VDB-322106 | CTI Indicators (IOB, IOC, IOA)

signature

permissions-required

Submit #641088 | Tenda Tenda AC20 AC20_V16.03.08.05 Stack-based Buffer Overflow

third-party-advisory

https://github.com/Cpppq43/Tenda/blob/main/Tenda_AC20_V16.03.08.05.md

related

https://github.com/Cpppq43/Tenda/blob/main/Tenda_AC20_V16.03.08.05.md#poc

exploit

https://www.tenda.com.cn/

product

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