CVE-2026-86926: 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. in Claris FileMaker Server
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.
AI Analysis
Technical Summary
This vulnerability involves a heap buffer overflow in the block parsing routine of the FileMaker Server database engine. When processing a maliciously crafted .fmp12 database file, the overflow can cause memory corruption. This corruption potentially enables arbitrary code execution by an attacker. The issue is resolved in FileMaker Server version 26.0.3.
Potential Impact
Successful exploitation can lead to memory corruption and potentially arbitrary code execution on the affected system running vulnerable versions of FileMaker Server. This could allow an attacker to execute code with the privileges of the FileMaker Server process.
Mitigation Recommendations
Upgrade FileMaker Server to version 26.0.3 or later, where this vulnerability has been addressed. No other mitigations are specified.
CVE-2026-86926: 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. in Claris FileMaker Server
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.
Affected software
Claris
FileMaker Server
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a heap buffer overflow in the block parsing routine of the FileMaker Server database engine. When processing a maliciously crafted .fmp12 database file, the overflow can cause memory corruption. This corruption potentially enables arbitrary code execution by an attacker. The issue is resolved in FileMaker Server version 26.0.3.
Potential Impact
Successful exploitation can lead to memory corruption and potentially arbitrary code execution on the affected system running vulnerable versions of FileMaker Server. This could allow an attacker to execute code with the privileges of the FileMaker Server process.
Mitigation Recommendations
Upgrade FileMaker Server to version 26.0.3 or later, where this vulnerability has been addressed. No other mitigations are specified.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-09-08T16:43:41.878Z
- State
- PUBLISHED
Threat ID: 6ab40d59f7a7c541061aeba5
Added to database: 09/23/2026, 17:33:13 UTC
Last enriched: 09/23/2026, 17:47:52 UTC
Last updated: 09/24/2026, 03:00:30 UTC
Views: 9
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