AEGLIX vulnerability intelligence
CVE-2021-3560
HIGH · CVSS 7.8 · Analyzed
Published: 2022-02-16 · Updated: 2026-06-17 · Source: NVD
Stored catalog record
Source record retrieved 2026-10-28T11:36:47.824058+00:00. Scheduled imports handle updates; this page does not assert that the provider was queried just now.
Vulnerability overview
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.
Patch review priority
Known exploitation: prioritize review
- CISA KEV lists real-world exploitation.
FIRST EPSS: 23.71% · percentile 97.8 · score date 2026-10-27.
EPSS estimates probability of exploitation in the next 30 days. It does not measure your exposure or prove exploitation. The elevated threshold is 10%; CISA KEV takes precedence. About FIRST EPSS ↗
Severity and scoring
- CVSS score
- 7.8 · HIGH
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-754, CWE-863
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Listed in CISA’s Known Exploited Vulnerabilities catalog.
- Affected product
- Red Hat · Polkit
- Added to catalog
- 2023-05-12
- Required action
- Apply updates per vendor instructions.
- CISA remediation due date
- 2023-06-02
CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:a:polkit_project:polkit:*:*:*:*:*:*:*:*
Before (exclusive): 0.119
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:*:*:*:*
cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform:4.7:*:*:*:*:*:*:*
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- http://packetstormsecurity.com/files/172836/polkit-Authentication-Bypass.html
Third Party Advisory · VDB Entry
- http://packetstormsecurity.com/files/172846/Facebook-Fizz-Denial-Of-Service.html
Third Party Advisory · VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1961710
Issue Tracking · Patch · Vendor Advisory
- https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/
Exploit · Third Party Advisory
- http://packetstormsecurity.com/files/172836/polkit-Authentication-Bypass.html
Third Party Advisory · VDB Entry
- http://packetstormsecurity.com/files/172846/Facebook-Fizz-Denial-Of-Service.html
Third Party Advisory · VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1961710
Issue Tracking · Patch · Vendor Advisory
- https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/
Exploit · Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-3560
US Government Resource