PT-2025-33123

CVE-2025-8939

Published

2025-08-11

Updated

2025-08-19

Description by

CVSS 2.0

9.0

High

MetricsAV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions: Tenda AC20 versions up to 16.03.08.12

Description: A vulnerability exists in Tenda AC20. The manipulation of the shareSpeed argument in an unknown function within the /goform/WifiGuestSet file leads to a buffer overflow. The attack can be executed remotely, and the exploit has been publicly disclosed and may be used.

Recommendations: Tenda AC20 versions prior to 16.03.08.12: Update to version 16.03.08.12 or later. As a temporary workaround, consider restricting access to the /goform/WifiGuestSet file to minimize the risk of exploitation.

Exploitability

Exploit

Fix

Impacts

Researchers

Qmssdxn

Vendors

Affected products

Weakness enumeration

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-120: Buffer Copy without Checking Size of Input (\'Classic Buffer Overflow\')

Related identifiers