# CVE-2021-37501: hdf5: Buffer Overflow vulnerability in HDFGroup hdf5-h5dump 1.12.0 through 1.13.0 allows attackers to cause a denial of ser...

CVE-2021-37501 is fixed in hdf5 on 1 platform, first by DEBIAN-CVE-2021-37501, released February 3, 2023. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2021-37501
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0155
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 3, 2023

## Description

Buffer Overflow vulnerability in HDFGroup hdf5-h5dump 1.12.0 through 1.13.0 allows attackers to cause a denial of service via h5tools_str_sprint in /hdf5/tools/lib/h5tools_str.c.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | hdf5 Debian 13.5 (trixie) | 1.14.5+repack-1 | [DEBIAN-CVE-2021-37501](https://patchblox.com/security/data/fix/linux/debian-cve-2021-37501.md) | Feb 3, 2023 |
| Linux | hdf5 Debian 14 | 1.14.5+repack-1 | [DEBIAN-CVE-2021-37501](https://patchblox.com/security/data/fix/linux/debian-cve-2021-37501.md) | Feb 3, 2023 |

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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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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