# CVE-2025-2924: hdf5: A vulnerability, which was classified as problematic, was found in HDF5 up to 1.14.6

CVE-2025-2924 is fixed in hdf5 on 1 platform by DEBIAN-CVE-2025-2924 (version 2.1.0+repack-1), released March 28, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-2924
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0030
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 28, 2025

## Description

A vulnerability, which was classified as problematic, was found in HDF5 up to 1.14.6. This affects the function H5HL__fl_deserialize of the file src/H5HLcache.c. The manipulation of the argument free_block leads to heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | hdf5 Debian 14 | 2.1.0+repack-1 | [DEBIAN-CVE-2025-2924](https://patchblox.com/security/data/fix/linux/debian-cve-2025-2924.md) | Mar 28, 2025 |

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Data as of 2026-11-08T13:06:02Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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