Red Hat Polkit Incorrect Authorization Vulnerability (CVE-2021-3560)

A local attacker, with a low-privilege account, can achieve full data confidentiality loss, arbitrary modification of data, complete denial of service or system unavailability. Federal agencies are required to remediate by 2023-06-02 under CISA BOD 22-01.

This is a Incorrect Authorization (CWE-863) vulnerability in Red Hat Polkit. 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. Exploitation requires local access, low attack complexity, a low-privilege authenticated account, and no user interaction required.

Probably yes if any of these apply:

Active exploitation documented in the wild. Threat-research write-up: https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/