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CVE-2021-3560
CWE-863
Critical
90.8
RPSRPS range: 0–105; KEV-listed vulnerabilities can receive an exploitation amplifier.
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.
Source: NVD
Signals
- CVSS
- 7.8
- High · v3.1
- EPSS
- 23.70%
- Probability of exploitation in the next 30 days (FIRST)
- CISA KEV
- In CISA KEV since May 2023
- Fix commit
- No known fix commit
- Sources: MoreFixes, FreshFixes
- Weakness
- CWE-863
- CWE-863, CWE-754
- Published
- 16 Feb 2022
- Last modified 6 Nov 2025
How to read these signals: RPS · EPSS · CISA KEV · Data sources
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Data as of 7 Oct 2026, 05:16 UK time