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CVE-2021-31755

Known Exploited (CISA KEV)CRITICAL
9.8
CVSS Severity Score
EPSS Score94.7430%
EPSS Percentile91.18th
PublishedMay 7, 2021
Last ModifiedNov 10, 2025

Vulnerability 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.

Affected Platforms (CPE)

💻
Tenda

Ac11 Firmware

<= 02.03.01.104_cn

References & Advisories

🔗 https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_3
🔗 https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_3
🔗 https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-31755

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