CVE-2025-8160: Tenda AC20 httpd SetSysTimeCfg buffer overflow

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% 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 classified as critical has been found in Tenda AC20 up to 16.03.08.12. Affected is an unknown function of the file /goform/SetSysTimeCfg of the component httpd. The manipulation of the argument timeZone leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Affected products

Tenda AC20: 16.03.08.12

References

https://github.com/CH13hh/cve/blob/main/tenda1.md
https://vuldb.com/?ctiid.317574
https://vuldb.com/?id.317574
https://vuldb.com/?submit.620625
https://www.tenda.com.cn/

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