CVE-2025-54949: meta platforms, inc executorch Heap-based Buffer Overflow

Vulnerability summary

CVE-2025-54949 is a critical (CVSS 9.8) Heap-based Buffer Overflow vulnerability in meta platforms, inc executorch. EPSS estimates a 0.67% chance of exploitation in the next 30 days, higher than 51% of scored vulnerabilities.

Timeline

1. 07-08-2025
   PublishedVulnerability first disclosed.
2. 12-08-2025
   Last modifiedVulnerability information updated.

Description

A heap buffer overflow vulnerability in the loading of ExecuTorch models can potentially result in code execution or other undesirable effects. This issue affects ExecuTorch prior to commit ede82493dae6d2d43f8c424e7be4721abe5242be

• CWE-122Heap-based Buffer OverflowA heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().