{"id":"CVE-2021-33027","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-33027","generatedAt":"2026-10-27T22:26:47.330Z","title":"Sylabs Singularity Enterprise through 1.6.2 has Insufficient Entropy in a nonce.","description":"Sylabs Singularity Enterprise through 1.6.2 has Insufficient Entropy in a nonce.","published":"2021-07-19T12:15:08.000Z","lastModified":"2026-06-17T03:54:02.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","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-331"],"affected":["sylabs/singularity"],"epss":{"score":0.01289,"percentile":0.70001,"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":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.29%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://medium.com/sylabs","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://support.sylabs.io/a/solutions/articles/42000086439","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://medium.com/sylabs","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.sylabs.io/a/solutions/articles/42000086439","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-33027","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."}