{"id":"CVE-2023-20894","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-20894","generatedAt":"2026-11-04T23:23:39.579Z","title":"The VMware vCenter Server contains an out-of-bounds write vulnerability in the implementation of the DCERPC protocol.","description":"The VMware vCenter Server contains an out-of-bounds write vulnerability in the implementation of the DCERPC protocol. A malicious actor with network access to vCenter Server may trigger an out-of-bound write by sending a specially crafted packet leading to memory corruption.","published":"2023-06-22T12:15:11.000Z","lastModified":"2026-06-17T05:31:08.000Z","status":"Modified","sourceIdentifier":"security@vmware.com","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-787"],"affected":["vmware/vcenter server"],"epss":{"score":0.33945,"percentile":0.98397,"date":"2026-11-03","history":[]},"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 33.9%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1658","source":"security@vmware.com"},{"url":"https://www.vmware.com/security/advisories/VMSA-2023-0014.html","tags":["Patch","Vendor Advisory"],"source":"security@vmware.com"},{"url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1658","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.vmware.com/security/advisories/VMSA-2023-0014.html","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-20894","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."}