A flaw was found in grub2 in versions prior to 2.06. The rmmod implementation allows the unloading of a module used as a dependency without checking if any other dependent module is still loaded leading to a use-after-free scenario. This could allow arbitrary code to be executed or a bypass of Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sun, 13 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.0004}

epss

{'score': 0.00045}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-04T15:40:35.453Z

Reserved: 2020-09-16T00:00:00

Link: CVE-2020-25632

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-03-03T17:15:11.660

Modified: 2024-11-21T05:18:17.340

Link: CVE-2020-25632

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-03-02T18:00:00Z

Links: CVE-2020-25632 - Bugzilla

cve-icon OpenCVE Enrichment

No data.