{"id":"CVE-2026-70091","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-70091","generatedAt":"2026-10-28T04:11:27.317Z","title":"Concurrent execution using shared resource with improper synchronization ('race condition') in Windows DNS allows an unauthorized attacker to deny service over a network.","description":"Concurrent execution using shared resource with improper synchronization ('race condition') in Windows DNS allows an unauthorized attacker to deny service over a network.","published":"2026-09-08T18:20:03.000Z","lastModified":"2026-09-24T23:18:38.000Z","status":"Analyzed","sourceIdentifier":"secure@microsoft.com","cvss":{"version":"3.1","score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-362"],"affected":["microsoft/windows 10 1607","microsoft/windows 10 1809","microsoft/windows server 2012","microsoft/windows server 2016","microsoft/windows server 2019","microsoft/windows server 2022","microsoft/windows server 2025"],"epss":{"score":0.00655,"percentile":0.51177,"date":"2026-10-27","history":[]},"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 (0.66%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70091","tags":["Patch","Vendor Advisory"],"source":"secure@microsoft.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-70091","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."}