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{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally."}], "id": "CVE-2026-40363", "lastModified": "2026-05-12T18:17:15.217", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.5, "impactScore": 5.9, "source": "secure@microsoft.com", "type": "Primary"}]}, "published": "2026-05-12T18:17:15.217", "references": [{"source": "secure@microsoft.com", "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40363"}], "sourceIdentifier": "secure@microsoft.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-122"}], "source": "secure@microsoft.com", "type": "Primary"}]}

{}

{"created": "2026-05-12T21:30:25.193040+00:00", "updated": "2026-05-12T21:30:25.193050+00:00", "vendors": []}