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{"affected": [{"affectedData": [{"product": "FileMaker Server", "vendor": "Claris", "versions": [{"lessThan": "26.0.3", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "product-security@apple.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-86926", "lastModified": "2026-09-24T15:17:49.453", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-86926", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-24T14:47:07.003686Z", "version": "2.0.3"}}]}, "published": "2026-09-23T18:17:09.587", "references": [{"source": "product-security@apple.com", "url": "https://support.claris.com/s/answerview?anum=000049219&language=en_US"}], "sourceIdentifier": "product-security@apple.com", "vulnStatus": "Undergoing Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-122"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,26.0.3)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "FileMaker Server", "source": "cna", "vendor": "Claris"}, "product": "filemaker_server", "vendor": "claris"}], "created": "2026-09-23T18:30:06.966004+00:00", "title": "Heap Buffer Overflow in FileMaker Server Allowing Arbitrary Code Execution", "updated": "2026-09-23T19:15:10.467522+00:00", "vendors": ["claris", "claris$PRODUCT$filemaker_server"], "weaknesses": ["CWE-119"]}