CVE-2025-11418: tenda ch22_firmware

Vulnerability summary

CVE-2025-11418 is a high (CVSS 10.0) vulnerability in tenda ch22_firmware. EPSS estimates a 6.71% chance of exploitation in the next 30 days, higher than 93.8% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 08-10-2025
   PublishedVulnerability first disclosed.
2. 24-02-2026
   Last modifiedVulnerability information updated.

Description

A security vulnerability has been detected in Tenda CH22 up to 1.0.0.1. This issue affects the function formWrlsafeset of the file /goform/AdvSetWrlsafeset of the component HTTP Request Handler. The manipulation of the argument mit_ssid_index leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed publicly and may 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).