PT-2026-64975 · Hdf5 · Hdf5

CVE-2026-17572 · Published 2026-07-27 · Updated 2026-07-27

Positive Technologies (AI Summary)

CVSS v4.0

5.5

Medium

Base vector

AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:H/SC:N/SI:L/SA:H/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions HDF5 versions prior to 2.1.2

Description A heap-based buffer overflow exists in the SOHM list-index deserialization code. An attacker can cause a denial of service resulting in a crash by providing a specially crafted HDF5 file. This occurs when the shared-message list index declares a num messages count that exceeds list max, leading to out-of-bounds heap reads and writes within the H5SM cache list deserialize() and H5SM cache list verify chksum() functions.

Recommendations Update to version 2.1.2 or later.

Fix

DoS

Out of bounds Read

Memory Corruption

Weakness Enumeration

CWE-125

CWE-787

Related Identifiers

CVE-2026-17572

Affected Products

Hdf5

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-17572 · Security Note
• https://github.com/HDFGroup/hdf5/issues/6501 · Note
• https://t.me/CVEtracker/61345 · Telegram Post