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Vulnerability · Published Nov 18, 2025 · Assigned by redhat

CVE-2025-61662Grub2: missing unregister call for gettext command may lead to use-after-free

High 7.8

In plain English

A high-severity use-after-free in grub2 from GNU. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 87.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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exploit this condition by invoking the orphaned command, causing the application to access a memory location that is no longer valid.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 packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:10grub2-common1:2.12-29.el10_1.2.alma.1ALSA-2026:4649
AlmaLinux:8grub2-common1:2.02-170.el8_10.1.alma.1ALSA-2026:4648
AlmaLinux:9grub2-common1:2.06-114.el9_7.1.alma.1ALSA-2026:4760
AlmaLinux:8grub2-efi-aa641:2.02-170.el8_10.1.alma.1ALSA-2026:4648
AlmaLinux:9grub2-efi-aa641:2.06-114.el9_7.1.alma.1ALSA-2026:4760
AlmaLinux:8grub2-efi-aa64-cdboot1:2.02-170.el8_10.1.alma.1ALSA-2026:4648
AlmaLinux:9grub2-efi-aa64-cdboot1:2.06-114.el9_7.1.alma.1ALSA-2026:4760
AlmaLinux:10grub2-efi-aa64-modules1:2.12-29.el10_1.2.alma.1ALSA-2026:4649
AlmaLinux:8grub2-efi-aa64-modules1:2.02-170.el8_10.1.alma.1ALSA-2026:4648
AlmaLinux:9grub2-efi-aa64-modules1:2.06-114.el9_7.1.alma.1ALSA-2026:4760
AlmaLinux:8grub2-efi-ia321:2.02-170.el8_10.1.alma.1ALSA-2026:4648
AlmaLinux:8grub2-efi-ia32-cdboot1:2.02-170.el8_10.1.alma.1ALSA-2026:4648
AlmaLinux:8grub2-efi-ia32-modules1:2.02-170.el8_10.1.alma.1ALSA-2026:4648
AlmaLinux:8grub2-efi-x641:2.02-170.el8_10.1.alma.1ALSA-2026:4648
AlmaLinux:9grub2-efi-x641:2.06-114.el9_7.1.alma.1ALSA-2026:4760
AlmaLinux:8grub2-efi-x64-cdboot1:2.02-170.el8_10.1.alma.1ALSA-2026:4648
AlmaLinux:9grub2-efi-x64-cdboot1:2.06-114.el9_7.1.alma.1ALSA-2026:4760
AlmaLinux:10grub2-efi-x64-modules1:2.12-29.el10_1.2.alma.1ALSA-2026:4649
AlmaLinux:8grub2-efi-x64-modules1:2.02-170.el8_10.1.alma.1ALSA-2026:4648
AlmaLinux:9grub2-efi-x64-modules1:2.06-114.el9_7.1.alma.1ALSA-2026:4760
AlmaLinux:8grub2-pc1:2.02-170.el8_10.1.alma.1ALSA-2026:4648
AlmaLinux:9grub2-pc1:2.06-114.el9_7.1.alma.1ALSA-2026:4760
AlmaLinux:10grub2-pc-modules1:2.12-29.el10_1.2.alma.1ALSA-2026:4649
AlmaLinux:8grub2-pc-modules1:2.02-170.el8_10.1.alma.1ALSA-2026:4648
AlmaLinux:9grub2-pc-modules1:2.06-114.el9_7.1.alma.1ALSA-2026:4760
AlmaLinux:8grub2-ppc64le1:2.02-170.el8_10.1.alma.1ALSA-2026:4648
AlmaLinux:9grub2-ppc64le1:2.06-114.el9_7.1.alma.1ALSA-2026:4760
AlmaLinux:10grub2-ppc64le-modules1:2.12-29.el10_1.2.alma.1ALSA-2026:4649
AlmaLinux:8grub2-ppc64le-modules1:2.02-170.el8_10.1.alma.1ALSA-2026:4648
AlmaLinux:9grub2-ppc64le-modules1:2.06-114.el9_7.1.alma.1ALSA-2026:4760
AlmaLinux:8grub2-tools1:2.02-170.el8_10.1.alma.1ALSA-2026:4648
AlmaLinux:9grub2-tools1:2.06-114.el9_7.1.alma.1ALSA-2026:4760
AlmaLinux:8grub2-tools-efi1:2.02-170.el8_10.1.alma.1ALSA-2026:4648
AlmaLinux:9grub2-tools-efi1:2.06-114.el9_7.1.alma.1ALSA-2026:4760
AlmaLinux:8grub2-tools-extra1:2.02-170.el8_10.1.alma.1ALSA-2026:4648
AlmaLinux:9grub2-tools-extra1:2.06-114.el9_7.1.alma.1ALSA-2026:4760
AlmaLinux:8grub2-tools-minimal1:2.02-170.el8_10.1.alma.1ALSA-2026:4648
AlmaLinux:9grub2-tools-minimal1:2.06-114.el9_7.1.alma.1ALSA-2026:4760
Debian:12grub2no fix listedDEBIAN-CVE-2025-61662
Debian:13grub2no fix listedDEBIAN-CVE-2025-61662
Debian:14grub22.14-1DEBIAN-CVE-2025-61662
Rocky Linux:10grub21:2.12-29.el10_1.2.rocky.0.1RLSA-2026:4649
Rocky Linux:8grub21:2.02-170.el8_10.1.rocky.0.1RLSA-2026:4648
Rocky Linux:9grub21:2.06-114.el9_7.1.rocky.0.1RLSA-2026:4760
Ubuntu:22.04:LTSgrub2-signedno fix listedUBUNTU-CVE-2025-61662
Ubuntu:24.04:LTSgrub2-signedno fix listedUBUNTU-CVE-2025-61662
Ubuntu:25.10grub2-signedno fix listedUBUNTU-CVE-2025-61662
Ubuntu:26.04:LTSgrub2-signedno fix listedUBUNTU-CVE-2025-61662
Ubuntu:26.10grub2-signedno fix listedUBUNTU-CVE-2025-61662
Ubuntu:22.04:LTSgrub2-unsignedno fix listedUBUNTU-CVE-2025-61662
Ubuntu:24.04:LTSgrub2-unsignedno fix listedUBUNTU-CVE-2025-61662
Ubuntu:25.10grub2-unsignedno fix listedUBUNTU-CVE-2025-61662
Ubuntu:26.04:LTSgrub2-unsignedno fix listedUBUNTU-CVE-2025-61662
Ubuntu:26.10grub2-unsignedno fix listedUBUNTU-CVE-2025-61662

Affected products (as reported)

VendorProductVersions
GNU grub2 0 – through 2.14
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support see references
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On see references
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support see references
Red Hat Red Hat OpenShift Container Platform 4.12 see references
Red Hat Red Hat OpenShift Container Platform 4.13 see references
Red Hat Red Hat OpenShift Container Platform 4.14 see references
Red Hat Red Hat OpenShift Container Platform 4.15 see references
Red Hat Red Hat OpenShift Container Platform 4.16 see references
Red Hat Red Hat OpenShift Container Platform 4.17 see references
Red Hat Red Hat OpenShift Container Platform 4.18 see references
Red Hat Red Hat OpenShift Container Platform 4.19 see references

Weakness: CWE-416 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References