CVE-2025-11526: Tenda AC7 WifiMacFilterSet stack-based overflow

Vulnerability summary

CVE-2025-11526 is a high (CVSS 9.0) vulnerability in tenda ac7_firmware. EPSS estimates a 0.80% chance of exploitation in the next 30 days, higher than 56.2% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 09-10-2025
   PublishedVulnerability first disclosed.
2. 24-02-2026
   Last modifiedVulnerability information updated.

Description

A vulnerability was found in Tenda AC7 15.03.06.44. The affected element is an unknown function of the file /goform/WifiMacFilterSet. Performing a manipulation of the argument wifi_chkHz results in stack-based buffer overflow. The attack may be initiated remotely. The exploit has been made public and could be used.

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
• 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).