{"id":"CVE-2026-105527","aliases":[],"cve":{"records":[{"id":"CVE-2026-105527","source":"microsoft","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-10-05T15:53:02.437Z","published":"2026-11-10T18:19:41.218Z","modified":"2026-11-13T18:08:31.314Z"}],"publishers":[{"name":"microsoft","role":"CNA","organizationId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","modified":"2026-11-13T18:08:31.314Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-11-10T21:11:16.006Z"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105527","tags":["vendor-advisory","patch"],"source":"microsoft"}],"weaknesses":[{"id":"CWE-822","description":"CWE-822: Untrusted Pointer 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Coordinator","timestamp":"2026-11-10T21:09:08.493320Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"partial"}]}]},"title":"Windows Encrypting File System (EFS) Denial of Service Vulnerability","titleSource":"microsoft","descriptionSource":"microsoft","description":"Untrusted pointer dereference in Windows Encrypting File System (EFS) allows an authorized attacker to deny service locally.","score":5.5,"severity":"medium","published":"2026-11-10T18:19:41.218Z","modified":"2026-11-13T18:08:31.314Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Microsoft","name":"Windows 10 Version 1607","platforms":["32-bit Systems","x64-based Systems"],"versions":[{"version":"10.0.14393.0","status":"affected","lessThan":"10.0.14393.9688","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-105527"},{"vendor":"Microsoft","name":"Windows 10 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Systems"],"versions":[{"version":"10.0.26200.0","status":"affected","lessThan":"10.0.26200.9974","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-105527"},{"vendor":"Microsoft","name":"Windows 11 version 26H1","platforms":["ARM64-based Systems","x64-based Systems"],"versions":[{"version":"10.0.28000.0","status":"affected","lessThan":"10.0.28000.3501","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-105527"},{"vendor":"Microsoft","name":"Windows 11 Version 26H2","platforms":["ARM64-based Systems","x64-based Systems"],"versions":[{"version":"10.0.26300.0","status":"affected","lessThan":"10.0.26300.9974","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-105527"},{"vendor":"Microsoft","name":"Windows Server 2016","platforms":["x64-based 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Systems"],"versions":[{"version":"10.0.17763.0","status":"affected","lessThan":"10.0.17763.9487","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-105527"},{"vendor":"Microsoft","name":"Windows Server 2022","platforms":["x64-based Systems"],"versions":[{"version":"10.0.20348.0","status":"affected","lessThan":"10.0.20348.5870","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-105527"},{"vendor":"Microsoft","name":"Windows Server 2025","platforms":["x64-based Systems"],"versions":[{"version":"10.0.26100.0","status":"affected","lessThan":"10.0.26100.33822","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-105527"},{"vendor":"Microsoft","name":"Windows Server 2025 (Server Core installation)","platforms":["x64-based Systems"],"versions":[{"version":"10.0.26100.0","status":"affected","lessThan":"10.0.26100.33822","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-105527"}],"remediation":[],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105527"],"sources":[{"name":"CVE","id":"CVE-2026-105527","modified":"2026-11-13T18:08:31.314Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-105527"}],"assessments":[{"source":"microsoft","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","score":5.5}],"sourceAffected":[],"observedAt":"2026-11-13T18:20:31.178Z","kev":{"status":"not-listed","checkedAt":"2026-11-14T23:20:35.853Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-11-12T08:10:31.434Z","attemptedAt":"2026-11-12T08:10:31.434Z"},{"source":"GHSA","status":"available","checkedAt":"2026-11-12T08:10:30.925Z","attemptedAt":"2026-11-12T08:10:30.925Z"},{"source":"EUVD","status":"available","checkedAt":"2026-11-12T08:10:30.925Z","attemptedAt":"2026-11-12T08:10:30.925Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-11-12T08:10:30.925Z","attemptedAt":"2026-11-12T08:10:30.925Z"}],"evidence":[{"source":"GitHub Advisory Database","id":"GHSA-w22w-3j52-c3hr","url":"https://github.com/advisories/GHSA-w22w-3j52-c3hr","modified":"2026-11-10T21:32:28Z","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","checkedAt":"2026-11-12T08:10:30.925Z"},{"source":"ENISA EUVD","id":"EUVD-2026-122024","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-122024","modified":"Nov 11, 2026, 5:15:05 PM","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","checkedAt":"2026-11-12T08:10:30.925Z"},{"source":"NVD","id":"CVE-2026-105527","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105527","modified":"2026-11-10T21:17:42.673","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","checkedAt":"2026-11-12T08:10:31.434Z"}],"aiSummary":{"text":"Windows Encrypting File System (EFS) has a denial of service vulnerability due to an untrusted pointer dereference, affecting various Windows versions, including Windows 10 and Windows 11, and allowing an authorized attacker to deny service locally. The affected versions are prior to specific updates. An authorized attacker can exploit this vulnerability locally.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-11-10T21:51:05.223Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-105527"}]}}