CVE-2025-11091

Name: CVE-2025-11091
Creator: NVD / NIST
Published: 2025-09-28T02:15:31.43+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.4/10EPSS 0.68%

Last modified Jun 17, 2026

CVE-2025-11091 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. 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. EPSS estimates a 0.68% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

7.4/10

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/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.68%

47.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Tenda	Ac21 Firmware	<= 16.03.08.16

References

https://github.com/maximdevere/CVE2/issues/2Exploit, Issue Tracking
https://vuldb.com/?ctiid.326173Permissions Required, VDB Entry
https://vuldb.com/?id.326173Third Party Advisory, VDB Entry
https://vuldb.com/?submit.661806Third Party Advisory, VDB Entry
https://www.tenda.com.cn/Product
https://github.com/maximdevere/CVE2/issues/2Exploit, Issue Tracking

Timeline

Published: Sep 28, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-11091?

How severe is CVE-2025-11091?

CVE-2025-11091 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 0.68% probability of exploitation in the next 30 days.

How do I fix CVE-2025-11091?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-11091?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST