Command Injection in Tenda G1 and G3 routers with firmware versions v15.11.0.17(9502)_CN…
Priority MEDIUM 48CWE-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 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/umountUSBPartition" request. This occurs because the "formSetUSBPartitionUmount" function executes the "doSystemCmd" function with untrusted input.
Why it matters now
EPSS 0.03194 88th 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 · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| 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: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-2021-27692
- 2026-10-03 Alias added: GHSA-rxj2-g98j-wfhh
References
More Tendacn G1 Firmware vulnerabilities
- TI-2021-09123 Command Injection in Tenda G0 routers with firmware versions v15.11.0.6(9039)_CN and… CVSS 3.1CRITICAL 9.8
- TI-2022-08113 Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a command… CVSS 3.1CRITICAL 9.8
- TI-2022-08112 Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a command… CVSS 3.1CRITICAL 9.8
- TI-2022-08110 Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a command… CVSS 3.1CRITICAL 9.8
- TI-2022-08109 Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a command… CVSS 3.1CRITICAL 9.8
- TI-2022-08107 Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a command… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-27692 · CVE Program
- CVE-2021-27692 · NVD
- FIRST EPSS
- GHSA-rxj2-g98j-wfhh · GitHub Advisory Database · CC BY 4.0
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