CVE-2021-27691
Last modified
CVE-2021-27691 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 25.18% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| 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 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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