{"id":"CVE-2026-68880","aliases":["EUVD-2026-73407","GHSA-8m5p-242c-cv48"],"status":"published","title":"Windows Win32k Elevation of Privilege Vulnerability","description":"Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges over a network.","severity":{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00768,"percentile":0.55828,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122","CWE-197"],"published":"2026-09-08T17:14:44Z","modified":"2026-10-31T16:13:25Z","products":[{"vendor":"microsoft","product":"microsoft office 365 for mac"},{"vendor":"microsoft","product":"microsoft office for android"},{"vendor":"microsoft","product":"microsoft office ltsc for mac 2021"},{"vendor":"microsoft","product":"microsoft office ltsc for mac 2024"},{"vendor":"microsoft","product":"windows_10_1607"},{"vendor":"microsoft","product":"windows_10_1809"},{"vendor":"microsoft","product":"windows_10_21h2"},{"vendor":"microsoft","product":"windows_10_22h2"},{"vendor":"microsoft","product":"windows_11_23h2"},{"vendor":"microsoft","product":"windows_11_24h2"},{"vendor":"microsoft","product":"windows_11_25h2"},{"vendor":"microsoft","product":"windows_11_26h1"},{"vendor":"microsoft","product":"windows_server_2012"},{"vendor":"microsoft","product":"windows_server_2016"},{"vendor":"microsoft","product":"windows_server_2019"},{"vendor":"microsoft","product":"windows_server_2022"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-68880","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68880"},{"url":"https://github.com/advisories/GHSA-8m5p-242c-cv48"}],"sources":{"cve":[{"id":"CVE-2026-68880","title":"Windows Win32k Elevation of Privilege Vulnerability","description":"Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-09-08T17:14:44.196Z","modified":"2026-10-31T16:13:25.402Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-122","CWE-197"],"updated_at":"2026-11-02T13:46:10.323375Z"}],"euvd":[{"id":"EUVD-2026-73407","description":"Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-09-08T17:14:44Z","modified":"2026-10-31T16:13:25Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-02T16:58:58.699155Z"}],"ghsa":[{"id":"GHSA-8m5p-242c-cv48","title":"Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges...","description":"Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-09-08T18:32:16Z","modified":"2026-09-08T18:32:22Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T15:11:29.92306Z"}],"nvd":[{"id":"CVE-2026-68880","description":"Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-09-08T18:18:35.257Z","modified":"2026-10-30T22:17:06.633Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-122","CWE-197"],"updated_at":"2026-11-02T14:12:44.436435Z"}]}}