CVE-2025-11091

A security flaw has been discovered in Tenda AC21 up to 16.03.08.16. Affected by this vulnerability is the function sscanf of the file /goform/SetStaticRouteCfg. The manipulation of the argument list results in buffer overflow. The attack can be launched remotely. The exploit has been released to the public and may be exploited.
References
Link Resource
https://github.com/maximdevere/CVE2/issues/2 Exploit Issue Tracking
https://vuldb.com/?ctiid.326173 Permissions Required VDB Entry
https://vuldb.com/?id.326173 Third Party Advisory VDB Entry
https://vuldb.com/?submit.661806 Third Party Advisory VDB Entry
https://www.tenda.com.cn/ Product
https://github.com/maximdevere/CVE2/issues/2 Exploit Issue Tracking
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:tenda:ac21_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:tenda:ac21:-:*:*:*:*:*:*:*

History

03 Oct 2025, 14:45

Type Values Removed Values Added
References () https://github.com/maximdevere/CVE2/issues/2 - () https://github.com/maximdevere/CVE2/issues/2 - Exploit, Issue Tracking
References () https://vuldb.com/?ctiid.326173 - () https://vuldb.com/?ctiid.326173 - Permissions Required, VDB Entry
References () https://vuldb.com/?id.326173 - () https://vuldb.com/?id.326173 - Third Party Advisory, VDB Entry
References () https://vuldb.com/?submit.661806 - () https://vuldb.com/?submit.661806 - Third Party Advisory, VDB Entry
References () https://www.tenda.com.cn/ - () https://www.tenda.com.cn/ - Product
First Time Tenda
Tenda ac21
Tenda ac21 Firmware
CPE cpe:2.3:o:tenda:ac21_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:tenda:ac21:-:*:*:*:*:*:*:*

29 Sep 2025, 15:16

Type Values Removed Values Added
References () https://github.com/maximdevere/CVE2/issues/2 - () https://github.com/maximdevere/CVE2/issues/2 -

28 Sep 2025, 02:15

Type Values Removed Values Added
New CVE

Information

Published : 2025-09-28 02:15

Updated : 2025-10-03 14:45


NVD link : CVE-2025-11091

Mitre link : CVE-2025-11091

CVE.ORG link : CVE-2025-11091


JSON object : View

Products Affected

tenda

  • ac21
  • ac21_firmware
CWE
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')