{"cve":"CVE-2021-3560","nvd":{"published":"2022-02-16T19:15:08.450","modified":"2026-06-17T04:05:20.767","status":"Analyzed","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-754","CWE-863"],"references":["http://packetstormsecurity.com/files/172836/polkit-Authentication-Bypass.html","http://packetstormsecurity.com/files/172846/Facebook-Fizz-Denial-Of-Service.html","https://bugzilla.redhat.com/show_bug.cgi?id=1961710","https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/","http://packetstormsecurity.com/files/172836/polkit-Authentication-Bypass.html"],"products":["canonical:ubuntu_linux","debian:debian_linux","polkit_project:polkit","redhat:openshift_container_platform","redhat:virtualization","redhat:virtualization_host"],"source":"nvd","synced_at":"2026-10-19T21:28:04.509275555+00:00"},"epss":{"cve":"CVE-2021-3560","score":0.23708,"percentile":0.97819,"date":"2026-10-31"},"kev":{"cve":"CVE-2021-3560","date_added":"2023-05-12","due_date":"2023-06-02","vendor":"Red Hat","product":"Polkit","known_ransomware":false},"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}