{"id":"CVE-2026-69978","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-69978","generatedAt":"2026-10-28T03:27:36.607Z","title":"Null pointer dereference in Windows VMSwitch allows an authorized attacker to deny service locally.","description":"Null pointer dereference in Windows VMSwitch allows an authorized attacker to deny service locally.","published":"2026-10-13T19:19:09.000Z","lastModified":"2026-10-26T17:30:15.000Z","status":"Analyzed","sourceIdentifier":"secure@microsoft.com","cvss":{"version":"3.1","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-476"],"affected":["microsoft/windows 10 1809","microsoft/windows 10 21h2","microsoft/windows 10 22h2","microsoft/windows 11 23h2","microsoft/windows 11 24h2","microsoft/windows 11 25h2","microsoft/windows 11 26h1","microsoft/windows 11 26h2","microsoft/windows server 2019","microsoft/windows server 2022","microsoft/windows server 2025"],"epss":{"score":0.00368,"percentile":0.30455,"date":"2026-10-26","history":[{"date":"2026-10-14","score":0.00324,"percentile":0.23778}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.37%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-13T19:19:09.000Z","detail":{"score":"5.6","severity":"MEDIUM","publishedAt":"2026-10-13T19:19:08.600Z"},"summary":"New CVE, medium severity (CVSS 5.5)."}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69978","tags":["Vendor Advisory","Patch"],"source":"secure@microsoft.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-69978","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}