CVE-2025-6516

MEDIUM

HDF5 <1.14.6 - Buffer Overflow

Title source: llm
STIX 2.1

Description

A vulnerability has been found in HDF5 up to 1.14.6 and classified as critical. This vulnerability affects the function H5F_addr_decode_len of the file /hdf5/src/H5Fint.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. 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.313636
Permissions Required, VDB Entry signature permissions-required
https://vuldb.com/?ctiid.313636
Third Party Advisory, VDB Entry third-party-advisory
https://vuldb.com/?submit.592589
Exploit, Issue Tracking, Third Party Advisory issue-tracking
https://github.com/HDFGroup/hdf5/issues/5581

Scores

CVSS v3 5.3
EPSS 0.0015
EPSS Percentile 34.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-119 CWE-122 CWE-787
Status published
Products (1)
hdfgroup/hdf5 < 1.14.6
Published Jun 23, 2025
Tracked Since Feb 18, 2026