{"id":"CVE-2021-28507","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-28507","generatedAt":"2026-10-27T21:21:14.763Z","title":"An issue has recently been discovered in Arista EOS where, under certain conditions, the service ACL configured for OpenConfig gNOI and OpenConfig RESTCONF might be bypassed, which results in the denied requests being forwarded to the agent.","description":"An issue has recently been discovered in Arista EOS where, under certain conditions, the service ACL configured for OpenConfig gNOI and OpenConfig RESTCONF might be bypassed, which results in the denied requests being forwarded to the agent.","published":"2022-01-14T20:15:10.000Z","lastModified":"2026-06-17T03:46:29.000Z","status":"Modified","sourceIdentifier":"psirt@arista.com","cvss":{"version":"3.1","score":7.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N"},"cwe":["CWE-284"],"affected":["arista/eos"],"epss":{"score":0.00669,"percentile":0.51668,"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 (0.67%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://www.arista.com/en/support/advisories-notices/security-advisories/13449-security-advisory-0071","tags":["Exploit","Mitigation","Patch","Vendor Advisory"],"source":"psirt@arista.com"},{"url":"https://www.arista.com/en/support/advisories-notices/security-advisories/13449-security-advisory-0071","tags":["Exploit","Mitigation","Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-28507","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."}