CVE-2021-27691

CRITICAL

Tenda G0/G1/G3 <15.11.0.6-17 - Command Injection

Title source: llm
STIX 2.1

Description

Command Injection in Tenda G0 routers with firmware versions v15.11.0.6(9039)_CN and v15.11.0.5(5876)_CN , and Tenda G1 and G3 routers with firmware versions v15.11.0.17(9502)_CN or v15.11.0.16(9024)_CN allows remote attackers to execute arbitrary OS commands via a crafted action/setDebugCfg request. This occurs because the "formSetDebugCfg" function executes glibc's system function with untrusted input.

References (1)

Core 1
Core References

Scores

CVSS v3 9.8
EPSS 0.2518
EPSS Percentile 97.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-119 CWE-78
Status published
Products (6)
tendacn/g0_firmware 15.11.0.5\(5876\)_cn
tendacn/g0_firmware 15.11.0.6\(9039\)_cn
tendacn/g1_firmware 15.11.0.16\(9024\)_cn
tendacn/g1_firmware 15.11.0.17\(9502\)_cn
tendacn/g3_firmware 15.11.0.16\(9024\)_cn
tendacn/g3_firmware 15.11.0.17\(9502\)_cn
Published Apr 16, 2021
Tracked Since Feb 18, 2026