{"affected":[{"platforms":["32-bit Systems","x64-based Systems"],"product":"Microsoft 365 Apps for Enterprise","source":"CNA: microsoft","vendor":"Microsoft","versions":[{"lessThan":"https://aka.ms/OfficeSecurityReleases","status":"affected","version":"16.0.1","versionType":"custom"}]},{"platforms":["32-bit Systems","x64-based Systems"],"product":"Microsoft Office LTSC 2021","source":"CNA: microsoft","vendor":"Microsoft","versions":[{"lessThan":"16.0.14334.21048","status":"affected","version":"16.0.1","versionType":"custom"}]},{"platforms":["32-bit Systems","x64-based Systems"],"product":"Microsoft Office LTSC 2024","source":"CNA: microsoft","vendor":"Microsoft","versions":[{"lessThan":"16.0.17932.21140","status":"affected","version":"16.0.0","versionType":"custom"}]}],"cveId":"CVE-2026-123377","cwes":["CWE-122","CWE-190"],"description":"Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":8.8,"severity":"high","source":"CNA: microsoft","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","version":"3.1"}],"modifiedAt":1794339748342,"publishedAt":1794334932328,"references":[{"source":"CNA: microsoft","tags":["vendor-advisory","patch"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-123377"}],"remediation":[{"kind":"fix","source":"CNA: microsoft","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-123377"}],"revision":"82402cc0bbab850bca84bc417a50bbebcf77256215388ad0972a84b75224d26c","sources":[{"modifiedAt":1794339748342,"name":"CNA: microsoft","retrievedAt":1794340368018,"url":"https://www.cve.org/CVERecord?id=CVE-2026-123377"}],"ssvc":null,"status":"published","title":"Microsoft Office Outlook Remote Code Execution Vulnerability","updatedAt":1794340368018}