{"id":"CVE-2025-55317","aliases":["EUVD-2025-27335","GHSA-9f84-fg53-w8q5"],"status":"published","title":"Microsoft AutoUpdate (MAU) Elevation of Privilege Vulnerability","description":"Improper link resolution before file access ('link following') in Microsoft AutoUpdate (MAU) allows an authorized attacker to elevate privileges locally.","severity":{"version":"3.1","score":7.8,"vector":"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","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00421,"percentile":0.36907,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-59"],"published":"2025-09-09T17:01:07Z","modified":"2026-06-17T09:41:38Z","products":[{"vendor":"microsoft","product":"autoupdate"},{"vendor":"microsoft","product":"microsoft autoupdate for mac"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55317","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-55317"},{"url":"https://github.com/advisories/GHSA-9f84-fg53-w8q5"}],"sources":{"cve":[{"id":"CVE-2025-55317","title":"Microsoft AutoUpdate (MAU) Elevation of Privilege Vulnerability","description":"Improper link resolution before file access ('link following') in Microsoft AutoUpdate (MAU) allows an authorized attacker to elevate privileges locally.","status":"published","published":"2025-09-09T17:01:07.872Z","modified":"2026-02-26T17:48:56.092Z","cvss":[{"version":"3.1","score":7.8,"vector":"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","level":"high","assessor":"cna"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T14:32:52.839698Z"}],"euvd":[{"id":"EUVD-2025-27335","description":"Improper link resolution before file access ('link following') in Microsoft AutoUpdate (MAU) allows an authorized attacker to elevate privileges locally.","status":"published","published":"2025-09-09T17:01:07Z","modified":"2026-02-26T17:48:56Z","cvss":[{"version":"3.1","score":7.8,"vector":"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","level":"high"}],"updated_at":"2026-11-02T19:48:21.16108Z"}],"ghsa":[{"id":"GHSA-9f84-fg53-w8q5","title":"Improper link resolution before file access ('link following') in Microsoft AutoUpdate (MAU)...","description":"Improper link resolution before file access ('link following') in Microsoft AutoUpdate (MAU) allows an authorized attacker to elevate privileges locally.","status":"published","published":"2025-09-09T18:31:23Z","modified":"2025-09-09T18:31:24Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T15:03:32.650929Z"}],"nvd":[{"id":"CVE-2025-55317","description":"Improper link resolution before file access ('link following') in Microsoft AutoUpdate (MAU) allows an authorized attacker to elevate privileges locally.","status":"published","published":"2025-09-09T17:16:07.767Z","modified":"2026-06-17T09:41:38.937Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T14:11:27.73916Z"}]}}