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CRITICAL · 9.8

CVE-2021-31757

An issue was discovered on Tenda AC11 devices with firmware through 02.03.01.104_CN. A stack buffer overflow vulnerability in /goform/setVLAN allows attackers to execute arbitrary code on the system v...

Vulnerability Description

An issue was discovered on Tenda AC11 devices with firmware through 02.03.01.104_CN. A stack buffer overflow vulnerability in /goform/setVLAN allows attackers to execute arbitrary code on the system via a crafted post request.

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
TendaAc11 Firmware<= 02.03.01.104_cn
TendaAc11-

Related Weaknesses (CWE)

CWE-787

References

FAQ

What is CVE-2021-31757?

CVE-2021-31757 is a vulnerability with a CVSS score of 9.8 (CRITICAL). An issue was discovered on Tenda AC11 devices with firmware through 02.03.01.104_CN. A stack buffer overflow vulnerability in /goform/setVLAN allows attackers to execute arbitrary code on the system v...

How severe is CVE-2021-31757?

CVE-2021-31757 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-2021-31757?

Check the references section above for vendor advisories and patch information. Affected products include: Tenda Ac11 Firmware, Tenda Ac11.