CVE-2021-3560

CVE-2021-3560

Vendor N/A
Product polkit
Weakness CWE-863 · Incorrect authorization
KEV Status Known Exploited
Published February 16, 2022
Last update October 21, 2025

CVSS base score

What the vulnerability does

01Description

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.

CISA mandated remediation

02CISA Required Action

Apply updates per vendor instructions.

Key dates

03Disclosure timeline

February 16, 2022 CVE published
October 21, 2025 Record updated