CVE-2025-8939

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.8 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
VulDBCNA
8.8 HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
CISA-ADPADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 27%
VendorProductVersion
tendaac20_firmware
16.03.08.0 ≤
𝑥
≤ 16.03.08.12
𝑥
= Vulnerable software versions
Common Weakness Enumeration
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/
https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC20/Tenda%20AC20.md