{"id":"CVE-2021-3560","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-3560","generatedAt":"2026-10-31T12:57:08.617Z","title":"Red Hat Polkit Incorrect Authorization Vulnerability","description":"It was found that polkit could be tricked into bypassing the credential checks for D-Bus requests, elevating the privileges of the requestor to the root user. This flaw could be used by an unprivileged local attacker to, for example, create a new local administrator. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.","published":"2022-02-16T19:15:08.000Z","lastModified":"2026-06-17T04:05:21.000Z","status":"Analyzed","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-863","CWE-754"],"affected":["polkit project/polkit","debian/debian linux","canonical/ubuntu linux","redhat/virtualization","redhat/virtualization host","redhat/openshift container platform"],"epss":{"score":0.23708,"percentile":0.97817,"date":"2026-10-30","history":[]},"kev":{"listed":true,"dateAdded":"2023-05-12","dueDate":"2023-06-02","knownRansomwareCampaignUse":"Unknown","notes":"Apply updates per vendor instructions.\nhttps://bugzilla.redhat.com/show_bug.cgi?id=1961710; https://nvd.nist.gov/vuln/detail/CVE-2021-3560"},"exploits":{"count":1,"verified":true,"firstPublished":"2021-06-15","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":50011,"kind":"exploit","title":"Polkit 0.105-26 0.117-2 - Local Privilege Escalation","url":"https://www.exploit-db.com/exploits/50011","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/local/50011.sh","file":"exploits/linux/local/50011.sh","published":"2021-06-15","added":"2021-06-15","updated":"2021-06-23","author":"J Smith","type":"local","platform":"linux","port":null,"verified":true,"codes":["CVE-2021-3560"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 2 June 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/172836/polkit-Authentication-Bypass.html","tags":["Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"http://packetstormsecurity.com/files/172846/Facebook-Fizz-Denial-Of-Service.html","tags":["Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1961710","tags":["Issue Tracking","Patch","Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/","tags":["Exploit","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://packetstormsecurity.com/files/172836/polkit-Authentication-Bypass.html","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://packetstormsecurity.com/files/172846/Facebook-Fizz-Denial-Of-Service.html","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1961710","tags":["Issue Tracking","Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-3560","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-3560","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."}