{"id":"CVE-2026-78439","revision":"249de96510bc4f7e89cb1a054d039e75","records":[{"revision":"249de96510bc4f7e89cb1a054d039e75","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-78439","aliases":[],"title":"Microsoft Office Graphics Component Remote Code Execution Vulnerability","description":"Stack-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code over a network.","state":0,"publishedAt":"2026-09-08T17:13:37.084+00:00","modifiedAt":"2026-10-14T23:08:54.501+00:00","affected":[{"ecosystem":"Vendor product","name":"Microsoft Office 365 for Mac","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft Office 365 for Mac\",\n                    \"versions\": [\n                        {\n                            \"version\": \"1.0.0\",\n                            \"lessThan\": \"16.113.26091433\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft Office for Android","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft Office for Android\",\n                    \"versions\": [\n                        {\n                            \"version\": \"16.0.1\",\n                            \"lessThan\": \"16.0.20430.20000\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft Office LTSC for Mac 2021","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft Office LTSC for Mac 2021\",\n                    \"versions\": [\n                        {\n                            \"version\": \"16.0.1\",\n                            \"lessThan\": \"16.113.26091433\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft Office LTSC for Mac 2024","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft Office LTSC for Mac 2024\",\n                    \"versions\": [\n                        {\n                            \"version\": \"16.0.0\",\n                            \"lessThan\": \"16.113.26091433\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","score":8.8,"severity":"HIGH"}],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-78439"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-78439","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-78439","identifiers":["CVE-2026-78439"]},"retained":false,"historicalAffected":[]}],"coverage":[]}