CVE-2026-86926

HIGHCVSS 7.8

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.

Timeline

Published:September 23rd, 2026 6:17 PM

Last modified:September 24th, 2026 3:17 PM

CVSS Scoring

CVSS v3: 7.8 (HIGH)

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-122

References & Reports

Advisories, patches, and third-party reports

https://support.claris.com/s/answerview?anum=000049219&language=en_US

Source: NIST NVD · Data may lag official sources by up to one minute