Command Injection in Tenda G0 routers with firmware versions v15.11.0.6(9039)_CN and…
Priority MEDIUM 63CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
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.
Why it matters now
EPSS 0.25372 97th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:tendacn:g0_firmware:15.11.0.5\(5876\)_cn:*:*:*:*:*:*:* | 15.11.0.5(5876)_cn | Vulnerable | Tendacn |
| cpe:2.3:o:tendacn:g0_firmware:15.11.0.6\(9039\)_cn:*:*:*:*:*:*:* | 15.11.0.6(9039)_cn | Vulnerable | Tendacn |
| cpe:2.3:h:tendacn:g0:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Tendacn |
| cpe:2.3:o:tendacn:g1_firmware:15.11.0.16\(9024\)_cn:*:*:*:*:*:*:* | 15.11.0.16(9024)_cn | Vulnerable | Tendacn |
| cpe:2.3:o:tendacn:g1_firmware:15.11.0.17\(9502\)_cn:*:*:*:*:*:*:* | 15.11.0.17(9502)_cn | Vulnerable | Tendacn |
| cpe:2.3:h:tendacn:g1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Tendacn |
| cpe:2.3:o:tendacn:g3_firmware:15.11.0.16\(9024\)_cn:*:*:*:*:*:*:* | 15.11.0.16(9024)_cn | Vulnerable | Tendacn |
| cpe:2.3:o:tendacn:g3_firmware:15.11.0.17\(9502\)_cn:*:*:*:*:*:*:* | 15.11.0.17(9502)_cn | Vulnerable | Tendacn |
| cpe:2.3:h:tendacn:g3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Tendacn |
- cpe:2.3:o:tendacn:g0_firmware:15.11.0.5\(5876\)_cn:*:*:*:*:*:*:* Versions 15.11.0.5(5876)_cn Vulnerable ·Tendacn
- cpe:2.3:o:tendacn:g0_firmware:15.11.0.6\(9039\)_cn:*:*:*:*:*:*:* Versions 15.11.0.6(9039)_cn Vulnerable ·Tendacn
- cpe:2.3:h:tendacn:g0:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Tendacn
- cpe:2.3:o:tendacn:g1_firmware:15.11.0.16\(9024\)_cn:*:*:*:*:*:*:* Versions 15.11.0.16(9024)_cn Vulnerable ·Tendacn
- cpe:2.3:o:tendacn:g1_firmware:15.11.0.17\(9502\)_cn:*:*:*:*:*:*:* Versions 15.11.0.17(9502)_cn Vulnerable ·Tendacn
- cpe:2.3:h:tendacn:g1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Tendacn
- cpe:2.3:o:tendacn:g3_firmware:15.11.0.16\(9024\)_cn:*:*:*:*:*:*:* Versions 15.11.0.16(9024)_cn Vulnerable ·Tendacn
- cpe:2.3:o:tendacn:g3_firmware:15.11.0.17\(9502\)_cn:*:*:*:*:*:*:* Versions 15.11.0.17(9502)_cn Vulnerable ·Tendacn
- cpe:2.3:h:tendacn:g3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Tendacn
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-27691
- 2026-10-03 Alias added: GHSA-rhp8-jw3x-rc64
References
Sources
- CVE-2021-27691 · CVE Program
- CVE-2021-27691 · NVD
- FIRST EPSS
- GHSA-rhp8-jw3x-rc64 · GitHub Advisory Database · CC BY 4.0
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