CVE-2025-8939

CWE-119 — Buffer OverflowCWE-120 — Classic Buffer Overflow3 documents3 sources
Severity
7.4HIGH
EPSS
0.4%
top 42.40%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Tenda Ac20 FirmwareTenda Ac20
Timeline
PublishedAug 14

Description

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 vector

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

Affected Packages2 packages

▶NVDtenda/ac20_firmware16.03.08.0 — 16.03.08.12
▶CVEListV5tenda/ac2013 versions+12

🔴Vulnerability Details

2
CVEList
Tenda AC20 WifiGuestSet buffer overflow↗2025-08-14
▶
GHSA
GHSA-vrw9-gr4h-7x8p: A vulnerability was determined in Tenda AC20 up to 16↗2025-08-14
▶