{"id":"CVE-2021-21998","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-21998","generatedAt":"2026-10-27T21:16:07.893Z","title":"VMware Carbon Black App Control 8.0, 8.1, 8.5 prior to 8.5.8, and 8.6 prior to 8.6.2 has an authentication bypass.","description":"VMware Carbon Black App Control 8.0, 8.1, 8.5 prior to 8.5.8, and 8.6 prior to 8.6.2 has an authentication bypass. A malicious actor with network access to the VMware Carbon Black App Control management server might be able to obtain administrative access to the product without the need to authenticate.","published":"2021-06-23T12:15:08.000Z","lastModified":"2026-06-17T03:36:32.000Z","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-287"],"affected":["vmware/carbon black app control"],"epss":{"score":0.10619,"percentile":0.95759,"date":"2026-10-26","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 10.6%, higher than 96% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://www.vmware.com/security/advisories/VMSA-2021-0012.html?","tags":["Patch","Vendor Advisory"],"source":"security@vmware.com"},{"url":"https://www.vmware.com/security/advisories/VMSA-2021-0012.html?","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-21998","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."}