CVE-2026-29043

MEDIUM EPSS 11.6%

Published Apr 10, 20262mo ago · Modified Jun 17, 20261w ago

5.5 CVSS 3.1

Medium

Published Apr 10, 2026 2mo ago

Last Modified Jun 17, 2026 1w ago

Description

HDF5 is software for managing data. In 1.14.1-2 and earlier, an attacker who can control an h5 file parsed by HDF5 can trigger a write-based heap buffer overflow condition in the H5T__ref_mem_setnull method. This can lead to a denial-of-service condition, and potentially further issues such as remote code execution depending on the practical exploitability of the heap overflow against modern operating systems.

CVSS Details

Base Score

5.5

Exploitability

1.8

Impact

3.6

Vector string

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector Local

Attack Complexity Low

Privileges Required None

User Interaction Required

Scope Unchanged

Confidentiality None

Integrity None

Availability High

Threat Intelligence

EPSS Exploit Probability

11.6% percentile

Exploit & Patch Status

Public Exploit Known

No Patch Available

Weaknesses 1

CWE-122

Affected Products 1

Vendor	Product	Version	Range
hdfgroup	hdf5	*	≤1.14.1-2

References 1

github.com https://github.com/HDFGroup/hdf5/security/advisories/GHSA-qm2m-5g5w-2277

ExploitVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.