Grub2: missing unregister call for gettext command may lead to use-after-free
Summary
| CVE | CVE-2025-61662 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2025-11-18 19:15:50 UTC |
| Updated | 2026-04-16 14:16:12 UTC |
| 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exploit this condition by invoking the orphaned command, causing the application to access a memory location that is no longer valid.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. |
Risk And Classification
Primary CVSS: v3.1 7.8 HIGH from [email protected]
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.000120000 probability, percentile 0.016600000 (date 2026-04-19)
Problem Types: CWE-416 | CWE-416 CWE-416 Use After Free
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 7.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | [email protected] | Secondary | 7.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | CNA | CVSS | 7.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD Known Affected Configurations (CPE 2.3)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | GNU | Grub2 | affected 2.14 semver | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 10 | unaffected 1:2.12-29.el10_1.2 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | unaffected 1:2.12-15.el10_0.2 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | unaffected 1:2.02-0.87.el7_9.16 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8 | unaffected 1:2.02-170.el8_10.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support | unaffected 1:2.02-87.el8_2.14 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | unaffected 1:2.02-99.el8_4.13 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | unaffected 1:2.02-99.el8_4.13 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | unaffected 1:2.02-123.el8_6.19 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service | unaffected 1:2.02-123.el8_6.19 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.6 Update Services For SAP Solutions | unaffected 1:2.02-123.el8_6.19 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | unaffected 1:2.02-152.el8_8.3 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.8 Update Services For SAP Solutions | unaffected 1:2.02-152.el8_8.3 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 9 | unaffected 1:2.06-114.el9_7.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 9.0 Update Services For SAP Solutions | unaffected 1:2.06-27.el9_0.23 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 9.2 Update Services For SAP Solutions | unaffected 1:2.06-61.el9_2.11 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support | unaffected 1:2.06-86.el9_4.4 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | unaffected 1:2.06-105.el9_6.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift Container Platform 4.12 | unaffected 412.86.202604010116-0 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift Container Platform 4.13 | unaffected 413.92.202604080111-0 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift Container Platform 4.18 | unaffected 418.94.202603181125-0 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift Container Platform 4.19 | unaffected 4.19.9.6.202604080618-0 * rpm | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| access.redhat.com/errata/RHSA-2026:4654 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:4649 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:4823 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:5074 | [email protected] | access.redhat.com | |
| lists.gnu.org/archive/html/grub-devel/2025-11/msg00155.html | [email protected] | lists.gnu.org | |
| access.redhat.com/errata/RHSA-2026:4998 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:5233 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:5127 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:4830 | [email protected] | access.redhat.com | |
| access.redhat.com/security/cve/CVE-2025-61662 | [email protected] | access.redhat.com | Third Party Advisory |
| access.redhat.com/errata/RHSA-2026:7243 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:4652 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:4900 | [email protected] | access.redhat.com | |
| www.openwall.com/lists/oss-security/2025/11/18/5 | af854a3a-2127-422b-91ae-364da2661108 | www.openwall.com | Mailing List, Patch |
| access.redhat.com/errata/RHSA-2026:6492 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:4648 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:4822 | [email protected] | access.redhat.com | |
| bugzilla.redhat.com/show_bug.cgi | [email protected] | bugzilla.redhat.com | Issue Tracking, Third Party Advisory |
| access.redhat.com/errata/RHSA-2026:4653 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:7239 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:4760 | [email protected] | access.redhat.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2025-11-12T21:18:21.069Z | Reported to Red Hat. |
| CNA | 2025-11-18T00:00:00.000Z | Made public. |
Workarounds
CNA: There's no known mitigation available for this vulnerability.
There are currently no legacy QID mappings associated with this CVE.