CVE-2025-6856

LOW

HDF5 1.14.6 - Use-After-Free in H5FL__reg_gc_list

Title source: llm
STIX 2.1

Description

A vulnerability, which was classified as problematic, was found in HDF5 1.14.6. Affected is the function H5FL__reg_gc_list of the file src/H5FL.c. The manipulation leads to use after free. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.

References (5)

Core 5
Core References
Third Party Advisory, VDB Entry vdb-entry technical-description
https://vuldb.com/?id.314328
Permissions Required signature permissions-required
https://vuldb.com/?ctiid.314328
Third Party Advisory, VDB Entry third-party-advisory
https://vuldb.com/?submit.602528
Exploit, Issue Tracking, Third Party Advisory issue-tracking
https://github.com/HDFGroup/hdf5/issues/5574

Scores

CVSS v3 3.3
EPSS 0.0020
EPSS Percentile 9.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-119 CWE-416
Status published
Products (1)
hdfgroup/hdf5 1.14.6
Published Jun 29, 2025
Tracked Since Feb 18, 2026