{"id":"CVE-2021-40859","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-40859","generatedAt":"2026-11-05T00:59:13.727Z","title":"Backdoors were discovered in Auerswald COMpact 5500R 7.8A and 8.0B devices, that allow attackers with access to the web based management application full administrative access to the device.","description":"Backdoors were discovered in Auerswald COMpact 5500R 7.8A and 8.0B devices, that allow attackers with access to the web based management application full administrative access to the device.","published":"2021-12-07T19:15:08.000Z","lastModified":"2026-06-17T04:07:33.000Z","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":[],"affected":["auerswald/compact 5500r firmware"],"epss":{"score":0.71979,"percentile":0.99429,"date":"2026-11-03","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2021-12-06","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":50569,"kind":"exploit","title":"Auerswald COMpact 8.0B - Multiple Backdoors","url":"https://www.exploit-db.com/exploits/50569","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/hardware/remote/50569.txt","file":"exploits/hardware/remote/50569.txt","published":"2021-12-06","added":"2021-12-06","updated":"2022-01-05","author":"RedTeam Pentesting GmbH","type":"remote","platform":"hardware","port":null,"verified":false,"codes":["CVE-2021-40859"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 72.0%, higher than 99% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://www.redteam-pentesting.de/en/advisories/-advisories-publicised-vulnerability-analyses","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.redteam-pentesting.de/en/advisories/rt-sa-2021-007/-auerswald-compact-multiple-backdoors","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.redteam-pentesting.de/en/advisories/-advisories-publicised-vulnerability-analyses","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.redteam-pentesting.de/en/advisories/rt-sa-2021-007/-auerswald-compact-multiple-backdoors","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-40859","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."}