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

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exploit this condition by invoking the orphaned command, causing the application to access a memory location that is no longer valid.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

Timeline

Scores

EPSS (exploitation in 30 days)

0.22% · top 88% of all CVEs (7 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.

Weakness

• CWE-416: Use After Free (opens in a new tab)All about CWE-416 and its CVEs

Affected products

• GNU · grub2

  • affected ≤ 2.14

• Red Hat · Red Hat Enterprise Linux 10

  • unaffected 1:2.12-29.el10_1.2 – < *

• Red Hat · Red Hat Enterprise Linux 10.0 Extended Update Support

  • unaffected 1:2.12-15.el10_0.2 – < *

• Red Hat · Red Hat Enterprise Linux 7 Extended Lifecycle Support

  • unaffected 1:2.02-0.87.el7_9.16 – < *

• Red Hat · Red Hat Enterprise Linux 8

  • unaffected 1:2.02-170.el8_10.1 – < *

• Red Hat · Red Hat Enterprise Linux 8.2 Advanced Update Support

  • unaffected 1:2.02-87.el8_2.14 – < *

• Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support

  • unaffected 1:2.02-99.el8_4.13 – < *

• Red Hat · Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

  • unaffected 1:2.02-99.el8_4.13 – < *

• Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support

  • unaffected 1:2.02-123.el8_6.19 – < *

• Red Hat · Red Hat Enterprise Linux 8.6 Telecommunications Update Service

  • unaffected 1:2.02-123.el8_6.19 – < *

• Red Hat · Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions

  • unaffected 1:2.02-123.el8_6.19 – < *

• Red Hat · Red Hat Enterprise Linux 8.8 Telecommunications Update Service

  • unaffected 1:2.02-152.el8_8.3 – < *

• Red Hat · Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions

  • unaffected 1:2.02-152.el8_8.3 – < *

• Red Hat · Red Hat Enterprise Linux 9

  • unaffected 1:2.06-114.el9_7.1 – < *

• Red Hat · Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

  • unaffected 1:2.06-27.el9_0.23 – < *

• Red Hat · Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

  • unaffected 1:2.06-61.el9_2.11 – < *

• Red Hat · Red Hat Enterprise Linux 9.4 Extended Update Support

  • unaffected 1:2.06-86.el9_4.4 – < *

• Red Hat · Red Hat Enterprise Linux 9.6 Extended Update Support

  • unaffected 1:2.06-105.el9_6.1 – < *

• Red Hat · Red Hat OpenShift Container Platform 4.12

  • unaffected 412.86.202604010116-0 – < *

• Red Hat · Red Hat OpenShift Container Platform 4.13

  • unaffected 413.92.202604080111-0 – < *

• Red Hat · Red Hat OpenShift Container Platform 4.14

  • unaffected 414.92.202605060243-0 – < *

• Red Hat · Red Hat OpenShift Container Platform 4.15

  • unaffected 415.92.202605060220-0 – < *

• Red Hat · Red Hat OpenShift Container Platform 4.16

  • unaffected 416.94.202604211449-0 – < *

• Red Hat · Red Hat OpenShift Container Platform 4.17

  • unaffected 417.94.202605112123-0 – < *

• Red Hat · Red Hat OpenShift Container Platform 4.18

  • unaffected 418.94.202603181125-0 – < *

• Red Hat · Red Hat OpenShift Container Platform 4.19

  • unaffected 4.19.9.6.202604080618-0 – < *

What to do

Workaround: There's no known mitigation available for this vulnerability.

References (25)

• RHSA-2026:10097 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
• RHSA-2026:14773 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
• RHSA-2026:15087 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
• RHSA-2026:17596 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
• RHSA-2026:4648 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
• RHSA-2026:4649 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
• RHSA-2026:4652 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
• RHSA-2026:4653 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
• RHSA-2026:4654 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
• RHSA-2026:4760 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
• RHSA-2026:4822 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
• RHSA-2026:4823 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
• RHSA-2026:4830 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
• RHSA-2026:4900 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
• RHSA-2026:4998 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
• RHSA-2026:5074 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
• RHSA-2026:5127 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
• RHSA-2026:5233 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
• RHSA-2026:6492 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
• RHSA-2026:7239 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
• RHSA-2026:7243 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
• https://access.redhat.com/security/cve/CVE-2025-61662 (opens in a new tab)vdb-entryx_refsource_REDHAT
• RHBZ#2414683 (opens in a new tab)issue-trackingx_refsource_REDHAT
• https://lists.gnu.org/archive/html/grub-devel/2025-11/msg00155.html (opens in a new tab)
• http://www.openwall.com/lists/oss-security/2025/11/18/5 (opens in a new tab)

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2025-61662](https://trackcve.app/badge/CVE-2025-61662.svg)](https://trackcve.app/cve/CVE-2025-61662)

Record last updated 16 Oct 2026, 10:08 UTC.