RHSA-2026:4830MediumCVSS 7.8

Red Hat Security Advisory: grub2 security update

Published
March 17, 2026
Last Modified
September 1, 2026

🔗 CVE IDs covered (1)

CVE-2025-61662 →

📋 Description

CVE-2025-61662 — grub2: Missing unregister call for gettext command may lead to use-after-free

🎯 Affected products46

  • Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • grub2-1:2.02-99.el8_4.13.src as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • grub2-1:2.02-99.el8_4.13.src as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • grub2-common-1:2.02-99.el8_4.13.noarch as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • grub2-common-1:2.02-99.el8_4.13.noarch as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • grub2-debuginfo-1:2.02-99.el8_4.13.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • grub2-debuginfo-1:2.02-99.el8_4.13.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • grub2-debugsource-1:2.02-99.el8_4.13.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • grub2-debugsource-1:2.02-99.el8_4.13.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • grub2-efi-aa64-modules-1:2.02-99.el8_4.13.noarch as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • grub2-efi-aa64-modules-1:2.02-99.el8_4.13.noarch as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • grub2-efi-ia32-1:2.02-99.el8_4.13.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • grub2-efi-ia32-1:2.02-99.el8_4.13.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • grub2-efi-ia32-cdboot-1:2.02-99.el8_4.13.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • grub2-efi-ia32-cdboot-1:2.02-99.el8_4.13.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • grub2-efi-ia32-modules-1:2.02-99.el8_4.13.noarch as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • grub2-efi-ia32-modules-1:2.02-99.el8_4.13.noarch as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • grub2-efi-x64-1:2.02-99.el8_4.13.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • grub2-efi-x64-1:2.02-99.el8_4.13.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • grub2-efi-x64-cdboot-1:2.02-99.el8_4.13.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • grub2-efi-x64-cdboot-1:2.02-99.el8_4.13.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • grub2-efi-x64-modules-1:2.02-99.el8_4.13.noarch as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • grub2-efi-x64-modules-1:2.02-99.el8_4.13.noarch as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • grub2-pc-1:2.02-99.el8_4.13.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • grub2-pc-1:2.02-99.el8_4.13.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • grub2-pc-modules-1:2.02-99.el8_4.13.noarch as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • grub2-pc-modules-1:2.02-99.el8_4.13.noarch as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • grub2-ppc64le-modules-1:2.02-99.el8_4.13.noarch as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • grub2-ppc64le-modules-1:2.02-99.el8_4.13.noarch as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • +16 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: There's no known mitigation available for this vulnerability.

🔗 References (4)