# CVE-2025-61664: Grub2: missing unregister call for normal_exit command may lead to use-after-free CVE-2025-61664 is fixed in 25 products on 1 platform, first by DEBIAN-CVE-2025-61664, released November 18, 2025. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2025-61664 - Priority: Routine - CVSS: 4.9 (Moderate) - EPSS: 0.0015 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Nov 18, 2025 - Weakness: Expired Pointer Dereference - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-61664 ## Description A vulnerability in the GRUB2 bootloader has been identified in the normal module. This flaw, a memory Use After Free issue, occurs because the normal_exit command is not properly unregistered when its related module is unloaded. An attacker can exploit this condition by invoking the command after the module has been removed, causing the system to improperly access a previously freed memory location. This leads to a system crash or possible impacts in data confidentiality and integrity. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | grub2 Debian 14 | 2.14-1 | [DEBIAN-CVE-2025-61664](https://patchblox.com/security/data/fix/linux/debian-cve-2025-61664.md) | Nov 18, 2025 | | Linux | grub2 opensuse-leap 15.6 | 2.12-150600.8.44.2 | [SUSE-SU-2025:4196-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4196-1.md) | Nov 24, 2025 | | Linux | grub2 opensuse-leap 16.0 | 2.12-160000.3.1 | [OPENSUSE-SU-2025:20163-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20163-1.md) | Dec 15, 2025 | | Linux | grub2 sles 15.6 | 2.12-150600.8.44.2 | [SUSE-SU-2025:4196-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4196-1.md) | Nov 24, 2025 | | Linux | grub2 sles 15.7 | 2.12-150700.19.19.1 | [SUSE-SU-2025:4305-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4305-1.md) | Nov 28, 2025 | | Linux | grub2 sles 16.0 | 2.12-160000.3.1 | [SUSE-SU-2025:21212-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-21212-1.md) | Dec 15, 2025 | | Linux | grub2-common amzn 2023 | 1:2.06-61.amzn2023.0.21 | [ALAS2023-2025-1342](https://patchblox.com/security/data/fix/linux/alas2023-2025-1342.md) | Jan 7, 2026 | | Linux | grub2-debuginfo amzn 2023 | 1:2.06-61.amzn2023.0.21 | [ALAS2023-2025-1342](https://patchblox.com/security/data/fix/linux/alas2023-2025-1342.md) | Jan 7, 2026 | | Linux | grub2-debugsource amzn 2023 | 1:2.06-61.amzn2023.0.21 | [ALAS2023-2025-1342](https://patchblox.com/security/data/fix/linux/alas2023-2025-1342.md) | Jan 7, 2026 | | Linux | grub2-efi-aa64 amzn 2023 | 1:2.06-61.amzn2023.0.21 | [ALAS2023-2025-1342](https://patchblox.com/security/data/fix/linux/alas2023-2025-1342.md) | Jan 7, 2026 | | Linux | grub2-efi-aa64-cdboot amzn 2023 | 1:2.06-61.amzn2023.0.21 | [ALAS2023-2025-1342](https://patchblox.com/security/data/fix/linux/alas2023-2025-1342.md) | Jan 7, 2026 | | Linux | grub2-efi-aa64-ec2 amzn 2023 | 1:2.06-61.amzn2023.0.21 | [ALAS2023-2025-1342](https://patchblox.com/security/data/fix/linux/alas2023-2025-1342.md) | Jan 7, 2026 | | Linux | grub2-efi-aa64-modules amzn 2023 | 1:2.06-61.amzn2023.0.21 | [ALAS2023-2025-1342](https://patchblox.com/security/data/fix/linux/alas2023-2025-1342.md) | Jan 7, 2026 | | Linux | grub2-efi-x64 amzn 2023 | 1:2.06-61.amzn2023.0.21 | [ALAS2023-2025-1342](https://patchblox.com/security/data/fix/linux/alas2023-2025-1342.md) | Jan 7, 2026 | | Linux | grub2-efi-x64-cdboot amzn 2023 | 1:2.06-61.amzn2023.0.21 | [ALAS2023-2025-1342](https://patchblox.com/security/data/fix/linux/alas2023-2025-1342.md) | Jan 7, 2026 | | Linux | grub2-efi-x64-ec2 amzn 2023 | 1:2.06-61.amzn2023.0.21 | [ALAS2023-2025-1342](https://patchblox.com/security/data/fix/linux/alas2023-2025-1342.md) | Jan 7, 2026 | | Linux | grub2-efi-x64-modules amzn 2023 | 1:2.06-61.amzn2023.0.21 | [ALAS2023-2025-1342](https://patchblox.com/security/data/fix/linux/alas2023-2025-1342.md) | Jan 7, 2026 | | Linux | grub2-emu amzn 2023 | 1:2.06-61.amzn2023.0.21 | [ALAS2023-2025-1342](https://patchblox.com/security/data/fix/linux/alas2023-2025-1342.md) | Jan 7, 2026 | | Linux | grub2-emu-debuginfo amzn 2023 | 1:2.06-61.amzn2023.0.21 | [ALAS2023-2025-1342](https://patchblox.com/security/data/fix/linux/alas2023-2025-1342.md) | Jan 7, 2026 | | Linux | grub2-emu-modules amzn 2023 | 1:2.06-61.amzn2023.0.21 | [ALAS2023-2025-1342](https://patchblox.com/security/data/fix/linux/alas2023-2025-1342.md) | Jan 7, 2026 | | Linux | grub2-pc amzn 2023 | 1:2.06-61.amzn2023.0.21 | [ALAS2023-2025-1342](https://patchblox.com/security/data/fix/linux/alas2023-2025-1342.md) | Jan 7, 2026 | | Linux | grub2-pc-modules amzn 2023 | 1:2.06-61.amzn2023.0.21 | [ALAS2023-2025-1342](https://patchblox.com/security/data/fix/linux/alas2023-2025-1342.md) | Jan 7, 2026 | | Linux | grub2-tools amzn 2023 | 1:2.06-61.amzn2023.0.21 | [ALAS2023-2025-1342](https://patchblox.com/security/data/fix/linux/alas2023-2025-1342.md) | Jan 7, 2026 | | Linux | grub2-tools-debuginfo amzn 2023 | 1:2.06-61.amzn2023.0.21 | [ALAS2023-2025-1342](https://patchblox.com/security/data/fix/linux/alas2023-2025-1342.md) | Jan 7, 2026 | | Linux | grub2-tools-efi amzn 2023 | 1:2.06-61.amzn2023.0.21 | [ALAS2023-2025-1342](https://patchblox.com/security/data/fix/linux/alas2023-2025-1342.md) | Jan 7, 2026 | | Linux | grub2-tools-efi-debuginfo amzn 2023 | 1:2.06-61.amzn2023.0.21 | [ALAS2023-2025-1342](https://patchblox.com/security/data/fix/linux/alas2023-2025-1342.md) | Jan 7, 2026 | | Linux | grub2-tools-extra amzn 2023 | 1:2.06-61.amzn2023.0.21 | [ALAS2023-2025-1342](https://patchblox.com/security/data/fix/linux/alas2023-2025-1342.md) | Jan 7, 2026 | | Linux | grub2-tools-extra-debuginfo amzn 2023 | 1:2.06-61.amzn2023.0.21 | [ALAS2023-2025-1342](https://patchblox.com/security/data/fix/linux/alas2023-2025-1342.md) | Jan 7, 2026 | | Linux | grub2-tools-minimal amzn 2023 | 1:2.06-61.amzn2023.0.21 | [ALAS2023-2025-1342](https://patchblox.com/security/data/fix/linux/alas2023-2025-1342.md) | Jan 7, 2026 | | Linux | grub2-tools-minimal-debuginfo amzn 2023 | 1:2.06-61.amzn2023.0.21 | [ALAS2023-2025-1342](https://patchblox.com/security/data/fix/linux/alas2023-2025-1342.md) | Jan 7, 2026 | --- Data as of 2026-11-08T06:59:42Z UTC. 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