{"affected":[{"platforms":["ARM64-based Systems","x64-based Systems"],"product":"Windows 11 Version 24H2","source":"CNA: microsoft","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.9974","status":"affected","version":"10.0.26100.0","versionType":"custom"}]},{"platforms":["ARM64-based Systems","x64-based Systems"],"product":"Windows 11 Version 25H2","source":"CNA: microsoft","vendor":"Microsoft","versions":[{"lessThan":"10.0.26200.9974","status":"affected","version":"10.0.26200.0","versionType":"custom"}]},{"platforms":["ARM64-based Systems","x64-based Systems"],"product":"Windows 11 version 26H1","source":"CNA: microsoft","vendor":"Microsoft","versions":[{"lessThan":"10.0.28000.3501","status":"affected","version":"10.0.28000.0","versionType":"custom"}]},{"platforms":["ARM64-based Systems","x64-based Systems"],"product":"Windows 11 Version 26H2","source":"CNA: microsoft","vendor":"Microsoft","versions":[{"lessThan":"10.0.26300.9974","status":"affected","version":"10.0.26300.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2025","source":"CNA: microsoft","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.33822","status":"affected","version":"10.0.26100.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2025 (Server Core installation)","source":"CNA: microsoft","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.33822","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}],"cveId":"CVE-2026-122162","cwes":["CWE-191","CWE-125"],"description":"Integer underflow (wrap or wraparound) in Windows Update Stack allows an authorized attacker to disclose information locally.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":5.5,"severity":"medium","source":"CNA: microsoft","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","version":"3.1"},{"score":5.5,"severity":"medium","source":"NVD: secure@microsoft.com","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}],"modifiedAt":1794360214861,"publishedAt":1794335042386,"references":[{"source":"CNA: microsoft","tags":["vendor-advisory","patch"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-122162"},{"source":"secure@microsoft.com","tags":[],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-122162"}],"remediation":[{"kind":"fix","source":"CNA: microsoft","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-122162"}],"revision":"3007760656a78b35bdc5dc192de2652fc84054c6efb56ca4c49d9dfc49b59642","sources":[{"modifiedAt":1794360214861,"name":"CNA: microsoft","retrievedAt":1794362920653,"url":"https://www.cve.org/CVERecord?id=CVE-2026-122162"},{"modifiedAt":1794338432937,"name":"NVD","retrievedAt":1794356873196,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-122162"}],"ssvc":{"assessedAt":1794359774148,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Windows Update Stack Information Disclosure Vulnerability","updatedAt":1794362920653}