{"id":"CVE-2026-69979","aliases":["EUVD-2026-99130","GHSA-45h5-26qh-349v"],"status":"published","title":"Windows AppX Deployment Service Security Feature Bypass Vulnerability","description":"Improper protection of alternate path in Windows AppX Deployment Service allows an authorized attacker to bypass a security feature locally.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00384,"percentile":0.32724,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-424"],"published":"2026-10-13T18:59:35Z","modified":"2026-10-31T18:01:38Z","products":[{"vendor":"microsoft","product":"windows 10 version 21h2"},{"vendor":"microsoft","product":"windows 10 version 22h2"},{"vendor":"microsoft","product":"windows 11 version 23h2"},{"vendor":"microsoft","product":"windows 11 version 24h2"},{"vendor":"microsoft","product":"windows 11 version 25h2"},{"vendor":"microsoft","product":"windows 11 version 26h1"},{"vendor":"microsoft","product":"windows 11 version 26h2"},{"vendor":"microsoft","product":"windows server 2022"},{"vendor":"microsoft","product":"windows server 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"},{"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_11_26h2"},{"vendor":"microsoft","product":"windows_server_2022"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69979","tags":["vendor-advisory","patch","Vendor Advisory","Patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-69979"},{"url":"https://github.com/advisories/GHSA-45h5-26qh-349v"}],"sources":{"cve":[{"id":"CVE-2026-69979","title":"Windows AppX Deployment Service Security Feature Bypass Vulnerability","description":"Improper protection of alternate path in Windows AppX Deployment Service allows an authorized attacker to bypass a security feature locally.","status":"published","published":"2026-10-13T18:59:35.924Z","modified":"2026-10-31T18:01:38.864Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-424"],"updated_at":"2026-11-02T13:50:27.582139Z"}],"euvd":[{"id":"EUVD-2026-99130","description":"Improper protection of alternate path in Windows AppX Deployment Service allows an authorized attacker to bypass a security feature locally.","status":"published","published":"2026-10-13T18:59:35Z","modified":"2026-10-31T18:01:38Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-02T16:58:55.619146Z"}],"ghsa":[{"id":"GHSA-45h5-26qh-349v","title":"Improper protection of alternate path in Windows AppX Deployment Service allows an authorized...","description":"Improper protection of alternate path in Windows AppX Deployment Service allows an authorized attacker to bypass a security feature locally.","status":"published","published":"2026-10-13T21:33:57Z","modified":"2026-10-13T21:33:57Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-424"],"updated_at":"2026-11-02T15:13:14.588915Z"}],"nvd":[{"id":"CVE-2026-69979","description":"Improper protection of alternate path in Windows AppX Deployment Service allows an authorized attacker to bypass a security feature locally.","status":"published","published":"2026-10-13T19:19:08.75Z","modified":"2026-10-26T17:28:21.44Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-424"],"updated_at":"2026-11-02T14:12:57.603498Z"}]}}