CVE-2025-8131: Tenda AC20 SetStaticRouteCfg stack-based overflow

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-07-25 · updated 2026-06-17
Weakness: CWE-119

Description

A vulnerability was found in Tenda AC20 16.03.08.05. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /goform/SetStaticRouteCfg. The manipulation of the argument list leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

Affected products

Tenda AC20: 16.03.08.05

References

https://github.com/Thir0th/Thir0th-CVE/blob/main/Tenda_AC20_V16.03.08.05_has_a_stack_overflow.md
https://vuldb.com/?ctiid.317527
https://vuldb.com/?id.317527
https://vuldb.com/?submit.619769
https://www.tenda.com.cn/
https://github.com/Thir0th/Thir0th-CVE/blob/main/Tenda_AC20_V16.03.08.05_has_a_stack_overflow.md

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