{"id":"CVE-2016-8520","url":"https://www.cyber-defence.io/tools/cve/CVE-2016-8520","generatedAt":"2026-10-29T00:33:21.827Z","title":"HPE Helion Eucalyptus v4.3.0 and earlier does not correctly check IAM user's permissions for accessing versioned objects and ACLs.","description":"HPE Helion Eucalyptus v4.3.0 and earlier does not correctly check IAM user's permissions for accessing versioned objects and ACLs. In some cases, authenticated users with S3 permissions could also access versioned data.","published":"2018-02-15T22:29:01.000Z","lastModified":"2026-06-17T00:54:29.000Z","status":"Modified","sourceIdentifier":"security-alert@hpe.com","cvss":{"version":"3.0","score":8.8,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-275"],"affected":["eucalyptus/eucalyptus"],"epss":{"score":0.01357,"percentile":0.71506,"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":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/95369","tags":["Third Party Advisory","VDB Entry"],"source":"security-alert@hpe.com"},{"url":"https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-c05363782","tags":["Vendor Advisory"],"source":"security-alert@hpe.com"},{"url":"http://www.securityfocus.com/bid/95369","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-c05363782","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-8520","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."}