{"id":"CVE-2026-122162","aliases":["EUVD-2026-122485","GHSA-j9p4-6v8g-w885"],"status":"published","title":"Windows Update Stack Information Disclosure Vulnerability","description":"Integer underflow (wrap or wraparound) in Windows Update Stack allows an authorized attacker to disclose information locally.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125","CWE-191"],"published":"2026-11-10T18:24:02Z","modified":"2026-11-10T21:33:53Z","products":[{"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 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-122162","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-122162"},{"url":"https://github.com/advisories/GHSA-j9p4-6v8g-w885"}],"sources":{"cve":[{"id":"CVE-2026-122162","title":"Windows Update Stack Information Disclosure Vulnerability","description":"Integer underflow (wrap or wraparound) in Windows Update Stack allows an authorized attacker to disclose information locally.","status":"published","published":"2026-11-10T18:24:02.386Z","modified":"2026-11-11T01:23:34.861Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-191","CWE-125"],"updated_at":"2026-11-10T19:39:58.973959Z"}],"euvd":[{"id":"EUVD-2026-122485","description":"Integer underflow (wrap or wraparound) in Windows Update Stack allows an authorized attacker to disclose information locally.","status":"published","published":"2026-11-10T18:24:02Z","modified":"2026-11-11T01:23:34Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-11T00:25:03.169314Z"}],"ghsa":[{"id":"GHSA-j9p4-6v8g-w885","title":"Integer underflow (wrap or wraparound) in Windows Update Stack allows an authorized attacker to...","description":"Integer underflow (wrap or wraparound) in Windows Update Stack allows an authorized attacker to disclose information locally.","status":"published","published":"2026-11-10T21:33:45Z","modified":"2026-11-10T21:33:53Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-125"],"updated_at":"2026-11-10T21:57:54.561479Z"}],"nvd":[{"id":"CVE-2026-122162","description":"Integer underflow (wrap or wraparound) in Windows Update Stack allows an authorized attacker to disclose information locally.","status":"published","published":"2026-11-10T19:20:32.8Z","modified":"2026-11-10T19:20:32.937Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-125","CWE-191"],"updated_at":"2026-11-10T22:21:33.392456Z"}]}}