CVE-2021-31755

high-risk
Published 2021-05-07

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.

Do I need to act?

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94.0% chance of exploitation in next 30 days
EPSS score — higher than 6% of all CVEs
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CISA KEV: actively exploited in the wild
On the Known Exploited Vulnerabilities catalog — federal agencies must patch
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Tenda

References (3)

Broken Link https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_3
Broken Link https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_3
US Government Resource https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-...
64
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 27/34 · High
Exposure 5/34 · Minimal