CVE-2025-6516 — Improper Restriction of Operations within the Bounds of a Memory Buffer in Hdf5

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory BufferCWE-122 — Heap-based Buffer OverflowCWE-787 — Out-of-bounds WriteCWE-770 — Allocation of Resources Without Limits or Throttling7 documents6 sources
Severity
4.8MEDIUMNVD
EPSS
0.1%
top 64.94%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
11
Hdfgroup Hdf5Debian Hdf5Msrc Azl3 Bind 9.16.44-2 ON Azure Linux 3.0+8 more
Timeline
PublishedJun 23

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.

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Affected Packages12 packages

▶NVDhdfgroup/hdf51.14.6
▶debiandebian/hdf5
▶CVEListV5hdfgroup/hdf57 versions+6

🔴Vulnerability Details

2
OSV
CVE-2025-6516: A vulnerability has been found in HDF5 up to 1↗2025-06-23
▶
GHSA
GHSA-r9x6-p32f-jfm3: A vulnerability has been found in HDF5 up to 1↗2025-06-23
▶

📋Vendor Advisories

4
Red Hat
hdf5: HDF5 heap-based overflow↗2025-06-23
▶
Microsoft
HDF5 H5Fint.c H5F_addr_decode_len heap-based overflow↗2025-06-10
▶
Debian
CVE-2025-6516: hdf5 - A vulnerability has been found in HDF5 up to 1.14.6 and classified as critical. ...↗2025
▶
Microsoft
Specific recursive query patterns may lead to an out-of-memory condition↗2024-02-13
▶