{"id":"CVE-2018-8626","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-8626","generatedAt":"2026-10-29T01:51:46.911Z","title":"A remote code execution vulnerability exists in Windows Domain Name System (DNS) servers when they fail to properly handle requests, aka \"Windows DNS Server Heap Overflow Vulnerability.\" This affects Windows Server 2012 R2, Windows Server 2019, Windows…","description":"A remote code execution vulnerability exists in Windows Domain Name System (DNS) servers when they fail to properly handle requests, aka \"Windows DNS Server Heap Overflow Vulnerability.\" This affects Windows Server 2012 R2, Windows Server 2019, Windows Server 2016, Windows 10, Windows 10 Servers.","published":"2018-12-12T00:29:01.000Z","lastModified":"2026-06-17T02:05:13.000Z","status":"Modified","sourceIdentifier":"secure@microsoft.com","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-787"],"affected":["microsoft/windows 10","microsoft/windows server 2012","microsoft/windows server 2016","microsoft/windows server 2019"],"epss":{"score":0.21241,"percentile":0.97581,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.34812,"percentile":0.98397},{"date":"2026-09-22","score":0.21241,"percentile":0.97484}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 21.2%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-09-21T00:00:00.000Z","detail":{"to":0.34812,"from":0.21241,"percentile":0.98397},"summary":"EPSS moved from 21.2% to 34.8% probability of exploitation in the next thirty days."}],"references":[{"url":"http://www.securityfocus.com/bid/106076","tags":["Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8626","tags":["Patch","Vendor Advisory"],"source":"secure@microsoft.com"},{"url":"http://www.securityfocus.com/bid/106076","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8626","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-8626","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."}