CVE-2024-2894: Tenda AC7 SetNetControlList formSetQosBand stack-based overflow

Vulnerability summary

CVE-2024-2894 is a high (CVSS 9.0) Stack-based Buffer Overflow vulnerability in tenda ac7_firmware. EPSS estimates a 1.58% chance of exploitation in the next 30 days, higher than 75.3% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 26-03-2024
   PublishedVulnerability first disclosed.
2. 15-08-2024
   Last modifiedVulnerability information updated.

Description

A vulnerability was found in Tenda AC7 15.03.06.44. It has been classified as critical. This affects the function formSetQosBand of the file /goform/SetNetControlList. The manipulation of the argument list leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-257937 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

• CWE-121Stack-based Buffer OverflowA stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.