CVE-2025-14994: Tenda FH1201/FH1206 HTTP Request webtypelibrary strcat stack-based overflow

Vulnerability summary

CVE-2025-14994 is a high (CVSS 9.0) vulnerability in tenda fh1201_firmware. EPSS estimates a 0.75% chance of exploitation in the next 30 days, higher than 54.3% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 21-12-2025
   PublishedVulnerability first disclosed.
2. 22-12-2025
   Last modifiedVulnerability information updated.

Description

A flaw has been found in Tenda FH1201 and FH1206 1.2.0.14(408)/1.2.0.8(8155). This impacts the function strcat of the file /goform/webtypelibrary of the component HTTP Request Handler. This manipulation of the argument webSiteId causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been published 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).