{"id":"CVE-2021-31755","aliases":[],"url":"https://o3.security/vulnerability/CVE-2021-31755","summary":"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…","details":"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.","published":"2021-05-07T23:15:07.047","modified":"2026-06-17T03:52:12.150","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.86891,"percentile":0.99735,"asOf":"2026-09-15"},"cisaKev":null,"exploitsKnown":3,"affectedPackages":[],"fix":null,"references":[{"type":"EXPLOIT","url":"https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_3"},{"type":"EXPLOIT","url":"https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_3"},{"type":"WEB","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-31755"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-06-17T03:52:12.150"}}