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.

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-26871 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.
Ubuntu USN Ubuntu USN USN-4980-1 polkit vulnerability
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 22 Oct 2025 00:30:00 +0000


Tue, 21 Oct 2025 20:30:00 +0000


Tue, 21 Oct 2025 19:30:00 +0000


Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.08143}

epss

{'score': 0.05351}


Wed, 29 Jan 2025 22:15:00 +0000

Type Values Removed Values Added
Metrics kev

{'dateAdded': '2023-05-12'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 14 Aug 2024 00:45:00 +0000

Type Values Removed Values Added
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2025-10-21T23:15:46.259Z

Reserved: 2021-05-20T00:00:00.000Z

Link: CVE-2021-3560

cve-icon Vulnrichment

Updated: 2024-08-03T17:01:06.571Z

cve-icon NVD

Status : Analyzed

Published: 2022-02-16T19:15:08.450

Modified: 2025-11-06T14:50:43.827

Link: CVE-2021-3560

cve-icon Redhat

Severity : Important

Publid Date: 2021-06-03T06:55:00Z

Links: CVE-2021-3560 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses