CVE-2025-14655: Tenda AC20 httpd SetSysAutoRebbotCfg formSetRebootTimer stack-based overflow

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-12-14 · updated 2026-10-07
Weakness: CWE-119

Description

A security flaw has been discovered in Tenda AC20 16.03.08.12. The impacted element is the function formSetRebootTimer of the file /goform/SetSysAutoRebbotCfg of the component httpd. Performing a manipulation of the argument rebootTime results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks.

Affected products

Tenda AC20: 16.03.08.12

References

https://github.com/Madgeaaaaa/MY_VULN_2/blob/main/Tenda/VULN13/AC20_SetSysAutoRebbotCfg.md
https://vuldb.com/?ctiid.336388
https://vuldb.com/?id.336388
https://vuldb.com/?submit.712910
https://www.tenda.com.cn/

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