CVE-2025-11327: tenda ac18_firmware

Vulnerability summary

CVE-2025-11327 is a high (CVSS 9.0) vulnerability in tenda ac18_firmware. EPSS estimates a 1.24% chance of exploitation in the next 30 days, higher than 69% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 06-10-2025
   PublishedVulnerability first disclosed.
2. 24-02-2026
   Last modifiedVulnerability information updated.

Description

A security vulnerability has been detected in Tenda AC18 15.03.05.19(6318). This vulnerability affects unknown code of the file /goform/SetUpnpCfg. The manipulation of the argument upnpEn leads to stack-based buffer overflow. It is possible to initiate the attack 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).