# CVE-2025-0689: grub2: When reading data from disk, the grub's UDF filesystem module utilizes the user controlled data length metadata to al... CVE-2025-0689 is fixed in 25 products on 1 platform, first by SUSE-SU-2025:0586-1, released February 19, 2025. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2025-0689 - Priority: High - CVSS: 7.8 (high) - EPSS: 0.0050 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Feb 19, 2025 ## Description When reading data from disk, the grub's UDF filesystem module utilizes the user controlled data length metadata to allocate its internal buffers. In certain scenarios, while iterating through disk sectors, it assumes the read size from the disk is always smaller than the allocated buffer size which is not guaranteed. A crafted filesystem image may lead to a heap-based buffer overflow resulting in critical data to be corrupted, resulting in the risk of arbitrary code execution by-passing secure boot protections. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | grub2 Debian 12.15 (bookworm) | 2.06-13+deb12u2 | [DEBIAN-CVE-2025-0689](https://patchblox.com/security/data/fix/linux/debian-cve-2025-0689.md) | Mar 3, 2025 | | Linux | grub2 Debian 13.5 (trixie) | 2.12-6 | [DEBIAN-CVE-2025-0689](https://patchblox.com/security/data/fix/linux/debian-cve-2025-0689.md) | Mar 3, 2025 | | Linux | grub2 Debian 14 | 2.12-6 | [DEBIAN-CVE-2025-0689](https://patchblox.com/security/data/fix/linux/debian-cve-2025-0689.md) | Mar 3, 2025 | | Linux | grub2 opensuse-leap 15.6 | 2.12-150600.8.18.2 | [SUSE-SU-2025:0586-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0586-1.md) | Feb 19, 2025 | | Linux | grub2 sles 15.6 | 2.12-150600.8.18.2 | [SUSE-SU-2025:0586-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0586-1.md) | Feb 19, 2025 | | Linux | grub2-common amzn 2023 | 1:2.06-61.amzn2023.0.16 | [ALAS2023-2025-937](https://patchblox.com/security/data/fix/linux/alas2023-2025-937.md) | Apr 9, 2025 | | Linux | grub2-debuginfo amzn 2023 | 1:2.06-61.amzn2023.0.16 | [ALAS2023-2025-937](https://patchblox.com/security/data/fix/linux/alas2023-2025-937.md) | Apr 9, 2025 | | Linux | grub2-debugsource amzn 2023 | 1:2.06-61.amzn2023.0.16 | [ALAS2023-2025-937](https://patchblox.com/security/data/fix/linux/alas2023-2025-937.md) | Apr 9, 2025 | | Linux | grub2-efi-aa64 amzn 2023 | 1:2.06-61.amzn2023.0.16 | [ALAS2023-2025-937](https://patchblox.com/security/data/fix/linux/alas2023-2025-937.md) | Apr 9, 2025 | | Linux | grub2-efi-aa64-cdboot amzn 2023 | 1:2.06-61.amzn2023.0.16 | [ALAS2023-2025-937](https://patchblox.com/security/data/fix/linux/alas2023-2025-937.md) | Apr 9, 2025 | | Linux | grub2-efi-aa64-ec2 amzn 2023 | 1:2.06-61.amzn2023.0.16 | [ALAS2023-2025-937](https://patchblox.com/security/data/fix/linux/alas2023-2025-937.md) | Apr 9, 2025 | | Linux | grub2-efi-aa64-modules amzn 2023 | 1:2.06-61.amzn2023.0.16 | [ALAS2023-2025-937](https://patchblox.com/security/data/fix/linux/alas2023-2025-937.md) | Apr 9, 2025 | | Linux | grub2-efi-x64 amzn 2023 | 1:2.06-61.amzn2023.0.16 | [ALAS2023-2025-937](https://patchblox.com/security/data/fix/linux/alas2023-2025-937.md) | Apr 9, 2025 | | Linux | grub2-efi-x64-cdboot amzn 2023 | 1:2.06-61.amzn2023.0.16 | [ALAS2023-2025-937](https://patchblox.com/security/data/fix/linux/alas2023-2025-937.md) | Apr 9, 2025 | | Linux | grub2-efi-x64-ec2 amzn 2023 | 1:2.06-61.amzn2023.0.16 | [ALAS2023-2025-937](https://patchblox.com/security/data/fix/linux/alas2023-2025-937.md) | Apr 9, 2025 | | Linux | grub2-efi-x64-modules amzn 2023 | 1:2.06-61.amzn2023.0.16 | [ALAS2023-2025-937](https://patchblox.com/security/data/fix/linux/alas2023-2025-937.md) | Apr 9, 2025 | | Linux | grub2-emu amzn 2023 | 1:2.06-61.amzn2023.0.16 | [ALAS2023-2025-937](https://patchblox.com/security/data/fix/linux/alas2023-2025-937.md) | Apr 9, 2025 | | Linux | grub2-emu-debuginfo amzn 2023 | 1:2.06-61.amzn2023.0.16 | [ALAS2023-2025-937](https://patchblox.com/security/data/fix/linux/alas2023-2025-937.md) | Apr 9, 2025 | | Linux | grub2-emu-modules amzn 2023 | 1:2.06-61.amzn2023.0.16 | [ALAS2023-2025-937](https://patchblox.com/security/data/fix/linux/alas2023-2025-937.md) | Apr 9, 2025 | | Linux | grub2-pc amzn 2023 | 1:2.06-61.amzn2023.0.16 | [ALAS2023-2025-937](https://patchblox.com/security/data/fix/linux/alas2023-2025-937.md) | Apr 9, 2025 | | Linux | grub2-pc-modules amzn 2023 | 1:2.06-61.amzn2023.0.16 | [ALAS2023-2025-937](https://patchblox.com/security/data/fix/linux/alas2023-2025-937.md) | Apr 9, 2025 | | Linux | grub2-tools amzn 2023 | 1:2.06-61.amzn2023.0.16 | [ALAS2023-2025-937](https://patchblox.com/security/data/fix/linux/alas2023-2025-937.md) | Apr 9, 2025 | | Linux | grub2-tools-debuginfo amzn 2023 | 1:2.06-61.amzn2023.0.16 | [ALAS2023-2025-937](https://patchblox.com/security/data/fix/linux/alas2023-2025-937.md) | Apr 9, 2025 | | Linux | grub2-tools-efi amzn 2023 | 1:2.06-61.amzn2023.0.16 | [ALAS2023-2025-937](https://patchblox.com/security/data/fix/linux/alas2023-2025-937.md) | Apr 9, 2025 | | Linux | grub2-tools-efi-debuginfo amzn 2023 | 1:2.06-61.amzn2023.0.16 | [ALAS2023-2025-937](https://patchblox.com/security/data/fix/linux/alas2023-2025-937.md) | Apr 9, 2025 | | Linux | grub2-tools-extra amzn 2023 | 1:2.06-61.amzn2023.0.16 | [ALAS2023-2025-937](https://patchblox.com/security/data/fix/linux/alas2023-2025-937.md) | Apr 9, 2025 | | Linux | grub2-tools-extra-debuginfo amzn 2023 | 1:2.06-61.amzn2023.0.16 | [ALAS2023-2025-937](https://patchblox.com/security/data/fix/linux/alas2023-2025-937.md) | Apr 9, 2025 | | Linux | grub2-tools-minimal amzn 2023 | 1:2.06-61.amzn2023.0.16 | [ALAS2023-2025-937](https://patchblox.com/security/data/fix/linux/alas2023-2025-937.md) | Apr 9, 2025 | | Linux | grub2-tools-minimal-debuginfo amzn 2023 | 1:2.06-61.amzn2023.0.16 | [ALAS2023-2025-937](https://patchblox.com/security/data/fix/linux/alas2023-2025-937.md) | Apr 9, 2025 | --- Data as of 2026-11-08T06:59:42Z UTC. 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