[ CVE-2026-86926 · Published 23 Sep 2026 ]

Vulnerability in Claris FileMaker Server

CVSS 7.8 EPSS <1%No fix listed yet

[ Description ]Official description

A heap buffer overflow vulnerability in the FileMaker Server database engine block parsing routine allowed a maliciously crafted .fmp12 database file to cause memory corruption, potentially leading to arbitrary code execution. This vulnerability is addressed in FileMaker Server version 26.0.3.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References