CVE-2021-31755

CRITICALCISA KEV

9.8

Description

An issue was discovered on Tenda AC11 devices with firmware through 02.03.01.104_CN. A stack buffer overflow vulnerability in /goform/setmac allows attackers to execute arbitrary code on the system via a crafted post request.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published5/7/2021

Last Modified11/10/2025

Sourcekev

Honeypot Sightings0

CISA KEV

VendorTenda

ProductAC11 Router

Vulnerability NameTenda AC11 Router Stack Buffer Overflow Vulnerability

KEV Date Added2021-11-03

Remediation Due Date2021-11-17

Ransomware UseUnknown

Affected Products

tenda:ac11tenda:ac11_firmware

Weaknesses (CWE)

CWE-787CWE-787

References

https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_3(cve@mitre.org)

https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_3(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-31755(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.