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CRITICAL · 9.8

CVE-2021-27692

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/umountUS...

Vulnerability Description

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.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
TendacnG1 Firmware15.11.0.16\(9024\)_cn
TendacnG1-
TendacnG3 Firmware15.11.0.16\(9024\)_cn
TendacnG3-

Related Weaknesses (CWE)

CWE-78CWE-119

References

FAQ

What is CVE-2021-27692?

CVE-2021-27692 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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/umountUS...

How severe is CVE-2021-27692?

CVE-2021-27692 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-27692?

Check the references section above for vendor advisories and patch information. Affected products include: Tendacn G1 Firmware, Tendacn G1, Tendacn G3 Firmware, Tendacn G3.