Vulnerability Details 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. This vulnerability is addressed in FileMaker Server version 26.0.3.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 2.1%
CVSS Severity
CVSS v3 Score 7.8
Products affected by CVE-2026-86926
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cpe:2.3:a:claris:filemaker_server:-
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cpe:2.3:a:claris:filemaker_server:19.1.2
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cpe:2.3:a:claris:filemaker_server:19.2.1
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cpe:2.3:a:claris:filemaker_server:19.3.1
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cpe:2.3:a:claris:filemaker_server:19.3.2
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cpe:2.3:a:claris:filemaker_server:19.4.1
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cpe:2.3:a:claris:filemaker_server:20.1.1
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cpe:2.3:a:claris:filemaker_server:20.1.2
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cpe:2.3:a:claris:filemaker_server:20.2.1
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cpe:2.3:a:claris:filemaker_server:20.3.1
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cpe:2.3:a:claris:filemaker_server:20.3.2
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cpe:2.3:a:claris:filemaker_server:21.0.1
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cpe:2.3:a:claris:filemaker_server:21.0.2
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cpe:2.3:a:claris:filemaker_server:21.1.1
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cpe:2.3:a:claris:filemaker_server:21.1.3
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cpe:2.3:a:claris:filemaker_server:21.1.4
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cpe:2.3:a:claris:filemaker_server:21.1.5
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cpe:2.3:a:claris:filemaker_server:21.1.6
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cpe:2.3:a:claris:filemaker_server:21.1.7
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cpe:2.3:a:claris:filemaker_server:22.0.1
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cpe:2.3:a:claris:filemaker_server:22.0.2
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cpe:2.3:a:claris:filemaker_server:22.0.4
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cpe:2.3:a:claris:filemaker_server:22.0.5
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cpe:2.3:a:claris:filemaker_server:22.0.6
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cpe:2.3:a:claris:filemaker_server:26.0.1