CVE-2025-8939

Tenda AC20 WifiGuestSet buffer overflow

CVSS 8.7 HIGHEPSS 0.8%CWE-119 CWE-120

A vulnerability was determined in Tenda AC20 up to 16.03.08.12. Affected is an unknown function of the file /goform/WifiGuestSet. The manipulation of the argument shareSpeed leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

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

Affected products

Tenda · AC20

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References

https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC20/Tenda%20AC20.md https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC20/Tenda%20AC20.md#3-poc https://vuldb.com/?ctiid.319902 https://vuldb.com/?id.319902 https://vuldb.com/?submit.631829 https://www.tenda.com.cn/