{"id":"CVE-2026-123378","revision":"db2e6bf5ebb64b4f810b409b6878b127","records":[{"revision":"db2e6bf5ebb64b4f810b409b6878b127","observedAt":"2026-11-10T20:21:22.398+00:00","statement":{"source":"cve-program","id":"CVE-2026-123378","aliases":[],"title":"Microsoft Office Outlook Remote Code Execution Vulnerability","description":"Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.","state":0,"publishedAt":"2026-11-10T18:22:12.845+00:00","modifiedAt":"2026-11-10T18:22:12.845+00:00","affected":[{"ecosystem":"Vendor product","name":"Microsoft 365 Apps for Enterprise","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft 365 Apps for Enterprise\",\n                    \"platforms\": [\n                        \"32-bit Systems\",\n                        \"x64-based Systems\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"16.0.1\",\n                            \"lessThan\": \"https://aka.ms/OfficeSecurityReleases\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft Office LTSC 2021","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft Office LTSC 2021\",\n                    \"platforms\": [\n                        \"32-bit Systems\",\n                        \"x64-based Systems\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"16.0.1\",\n                            \"lessThan\": \"16.0.14334.21048\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft Office LTSC 2024","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft Office LTSC 2024\",\n                    \"platforms\": [\n                        \"32-bit Systems\",\n                        \"x64-based Systems\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"16.0.0\",\n                            \"lessThan\": \"16.0.17932.21140\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","score":7.5,"severity":"HIGH"}],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-123378"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-123378","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-123378","identifiers":["CVE-2026-123378"]},"retained":false,"historicalAffected":[]}],"coverage":[]}