CVE-2025-61662

Grub2: missing unregister call for gettext command may lead to use-after-free

HIGH
7.8
CVSS Score
Published: November 18, 2025 at 06:20 PM UTC
Updated: October 18, 2026 at 08:10 PM UTC
2 products affected across 2 vendorsGRUB2OpenShift Container Platform

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

A Use-After-Free vulnerability has been discovered in GRUB's gettext module. This flaw stems from a programming error where the gettext command remains registered in memory after its module is unloaded. An attacker can exploit this condition by invoking the orphaned command, causing the application to access a memory location that is no longer valid. An attacker could exploit this vulnerability to cause grub to crash, leading to a Denial of Service. Possible data integrity or confidentiality compromise is not discarded.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 2.14
Vendor states this is fixed in 4.19.9.6.202604080618-0 (unaffected)
Vendor states this is fixed in 412.86.202604010116-0 (unaffected)
Vendor states this is fixed in 413.92.202604080111-0 (unaffected)
Vendor states this is fixed in 414.92.202605060243-0 (unaffected)
Vendor states this is fixed in 415.92.202605060220-0 (unaffected)
Vendor states this is fixed in 416.94.202604211449-0 (unaffected)
Vendor states this is fixed in 417.94.202605112123-0 (unaffected)
Vendor states this is fixed in 418.94.202603181125-0 (unaffected)

References (25)

VDB Entryx_refsource_REDHATThird Party Advisory
Source: cverecord
https://access.redhat.com/security/cve/CVE-2025-61662
Issue Trackingx_refsource_REDHATThird Party Advisory
Source: cverecord
https://bugzilla.redhat.com/show_bug.cgi?id=2414683
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:4649
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:4652
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:4654
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:4648
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:4653

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHredhat
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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