CVE-2025-0622Grub2: command/gpg: use-after-free due to hooks not being removed on module unload
Updated under an hour ago ()
Does this affect you?
It affects Red Hat Enterprise Linux 10 and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
A flaw was found in command/gpg. In some scenarios, hooks created by loaded modules are not removed when the related module is unloaded. This flaw allows an attacker to force grub2 to call the hooks once the module that registered it was unloaded, leading to a use-after-free vulnerability. If correctly exploited, this vulnerability may result in arbitrary code execution, eventually allowing the attacker to bypass secure boot protections.
- CVSS
- 6.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-416
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Deferred
- Record last updated
- Oct 21, 2026
- First seen by InfoSec Signals
- Oct 21, 2026
Affected products
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux | from 1:2.12-15.el10_0 not affected | CNA record |
Red Hat Red Hat OpenShift Container Platform 4 redhat:openshift | 4 | CNA record |
References
- https://access.redhat.com/errata/RHSA-2025:16154vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:6990vendor-advisory, x-refsource-redhat
- https://access.redhat.com/security/cve/CVE-2025-0622vdb-entry, x-refsource-redhat
- https://bugzilla.redhat.com/show_bug.cgi?id=2345865issue-tracking, x-refsource-redhat
- https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.