PT-2025-39754

CVE-2025-11091

Published

2025-09-27

Updated

2026-10-09

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 AC21 versions up to 16.03.08.16

Description A security issue exists in Tenda AC21 routers. A buffer overflow can be triggered remotely through manipulation of the argument list within the sscanf function located in the /goform/SetStaticRouteCfg file. The exploit for this issue has been publicly released. Admin access may simplify exploitation.

Recommendations Update Tenda AC21 to a version later than 16.03.08.16.

Exploitability

Exploit

Fix

Impacts

Researchers

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