{"id":"CVE-2026-62877","title":"Windows Win32k Elevation of Privilege Vulnerability","summary":"Stack-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges locally.","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","cvssSource":"cna","cwe":["CWE-121"],"vendor":"Microsoft","product":"Microsoft Office 365 for Mac","affected":["office_365_for_mac >= 1.0.0 < 16.112.26090911","office_for_android >= 16.0.1 < 16.0.20430.20000","office_ltsc_for_mac_2021 >= 16.0.1 < 16.112.26090911","office_ltsc_for_mac_2024 >= 16.0.0 < 16.112.26090911"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-08-12T03:55:26.252100Z"},"published":"2026-08-11","updated":"2026-10-28","sourceUpdated":"2026-10-28T20:05:55.792Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-62877","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62877","label":"Windows Win32k Elevation of Privilege Vulnerability"}],"tags":["cve.org"],"epss":0.00333,"epssPercentile":0.26611,"ingestedAt":"2026-09-08T18:07:34.898Z","slug":"CVE-2026-62877","body":"## Overview\n\nStack-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges locally.\n\n## Affected\n\n- `office_365_for_mac >= 1.0.0 < 16.112.26090911`\n- `office_for_android >= 16.0.1 < 16.0.20430.20000`\n- `office_ltsc_for_mac_2021 >= 16.0.1 < 16.112.26090911`\n- `office_ltsc_for_mac_2024 >= 16.0.0 < 16.112.26090911`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}