Stack Buffer Overflow Vulnerability in Tenda AC11 Devices
CVE-2021-31756

9.8CRITICAL

Key Information:

Vendor

Tenda
Status
Ac11 Firmware
Vendor
CVE Published:
7 May 2021

What is CVE-2021-31756?

A stack buffer overflow vulnerability exists in Tenda AC11 devices running specific firmware versions. This issue occurs in the /gofrom/setwanType endpoint, where malicious input can be exploited through crafted POST requests. When the attacker-controlled input is incorrectly handled, it leads to arbitrary code execution on the device, potentially compromising the system's integrity and security.

References

https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_1
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2021-31756 : Stack Buffer Overflow Vulnerability in Tenda AC11 Devices