# CVE-2025-43963: libraw-bin: In LibRaw before 0.21.4, phase_one_correct in decoders/load_mfbacks.cppallows out-of-buffer access because split_col...

CVE-2025-43963 is fixed in 6 products on 1 platform, first by libraw-bin 0.18.8-1ubuntu0.4+esm1, released April 20, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2025-43963
- Priority: High
- CVSS: 9.1 (Medium)
- EPSS: 0.0045
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 20, 2025

## Description

In LibRaw before 0.21.4, phase_one_correct in decoders/load_mfbacks.cppallows out-of-buffer access because split_col and split_row values are notchecked in 0x041f tag processing.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libraw Debian 12.15 (bookworm) | 0.20.2-2.1+deb12u1 | [DEBIAN-CVE-2025-43963](https://patchblox.com/security/data/fix/linux/debian-cve-2025-43963.md) | Apr 21, 2025 |
| Linux | libraw Debian 13.5 (trixie) | 0.21.4-1 | [DEBIAN-CVE-2025-43963](https://patchblox.com/security/data/fix/linux/debian-cve-2025-43963.md) | Apr 21, 2025 |
| Linux | libraw Debian 14 | 0.21.4-1 | [DEBIAN-CVE-2025-43963](https://patchblox.com/security/data/fix/linux/debian-cve-2025-43963.md) | Apr 21, 2025 |
| Linux | libraw opensuse-leap 15.6 | 0.21.1-150600.3.5.1 | [SUSE-SU-2025:1572-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-1572-1.md) | May 16, 2025 |
| Linux | libraw sles 15.6 | 0.21.1-150600.3.5.1 | [SUSE-SU-2025:1572-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-1572-1.md) | May 16, 2025 |
| Linux | libraw sles 15.7 | 0.18.9-150000.3.30.1 | [SUSE-SU-2025:01569-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-01569-1.md) | Jun 6, 2025 |
| Linux | libraw-bin Ubuntu 18.04.6 LTS (bionic) | 0.18.8-1ubuntu0.4+esm1 | [libraw-bin 0.18.8-1ubuntu0.4+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libraw-bin-0.18.8-1ubuntu0.4-esm1.md) | Apr 20, 2025 |
| Linux | libraw-bin Ubuntu 20.04 LTS (focal) | 0.19.5-1ubuntu1.4 | [libraw-bin 0.19.5-1ubuntu1.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libraw-bin-0.19.5-1ubuntu1.4.md) | Apr 20, 2025 |
| Linux | libraw-bin Ubuntu 22.04.1 LTS (jammy) | 0.20.2-2ubuntu2.22.04.2 | [libraw-bin 0.20.2-2ubuntu2.22.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libraw-bin-0.20.2-2ubuntu2.22.04.2.md) | Apr 20, 2025 |
| Linux | libraw-bin Ubuntu 24.04.5 LTS (noble) | 0.21.2-2.1ubuntu0.24.04.1 | [libraw-bin 0.21.2-2.1ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libraw-bin-0.21.2-2.1ubuntu0.24.04.1.md) | Apr 20, 2025 |
| Linux | libraw-bin Ubuntu 24.10 (oracular) | 0.21.2-2.1ubuntu0.24.10.1 | [libraw-bin 0.21.2-2.1ubuntu0.24.10.1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libraw-bin-0.21.2-2.1ubuntu0.24.10.1.md) | Jan 16, 2026 |
| Linux | libraw-bin Ubuntu 25.04 (plucky) | 0.21.3-1ubuntu0.25.04.1 | [libraw-bin 0.21.3-1ubuntu0.25.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libraw-bin-0.21.3-1ubuntu0.25.04.1.md) | Jan 16, 2026 |
| Linux | libraw16 Ubuntu 18.04.6 LTS (bionic) | 0.18.8-1ubuntu0.4+esm1 | [libraw16 0.18.8-1ubuntu0.4+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libraw16-0.18.8-1ubuntu0.4-esm1.md) | Apr 20, 2025 |
| Linux | libraw19 Ubuntu 20.04 LTS (focal) | 0.19.5-1ubuntu1.4 | [libraw19 0.19.5-1ubuntu1.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libraw19-0.19.5-1ubuntu1.4.md) | Apr 20, 2025 |
| Linux | libraw20 Ubuntu 22.04.1 LTS (jammy) | 0.20.2-2ubuntu2.22.04.2 | [libraw20 0.20.2-2ubuntu2.22.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libraw20-0.20.2-2ubuntu2.22.04.2.md) | Apr 20, 2025 |
| Linux | libraw23t64 Ubuntu 24.04.5 LTS (noble) | 0.21.2-2.1ubuntu0.24.04.1 | [libraw23t64 0.21.2-2.1ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libraw23t64-0.21.2-2.1ubuntu0.24.04.1.md) | Apr 20, 2025 |
| Linux | libraw23t64 Ubuntu 24.10 (oracular) | 0.21.2-2.1ubuntu0.24.10.1 | [libraw23t64 0.21.2-2.1ubuntu0.24.10.1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libraw23t64-0.21.2-2.1ubuntu0.24.10.1.md) | Jan 16, 2026 |
| Linux | libraw23t64 Ubuntu 25.04 (plucky) | 0.21.3-1ubuntu0.25.04.1 | [libraw23t64 0.21.3-1ubuntu0.25.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libraw23t64-0.21.3-1ubuntu0.25.04.1.md) | Jan 16, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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