CVE-2024-0538: tenda w9_firmware Stack-based Buffer Overflow

Vulnerability summary

CVE-2024-0538 is a critical (CVSS 9.8) Stack-based Buffer Overflow vulnerability in tenda w9_firmware. EPSS estimates a 1.40% chance of exploitation in the next 30 days, higher than 72.2% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 15-01-2024
   PublishedVulnerability first disclosed.
2. 23-10-2024
   Last modifiedVulnerability information updated.

Description

A vulnerability has been found in Tenda W9 1.0.0.7(4456) and classified as critical. This vulnerability affects the function formQosManage_auto of the component httpd. The manipulation of the argument ssidIndex leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-250708. 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.