CVE-2026-17572

EUVD-2026-49318
Heap-based buffer overflow in the SOHM list-index deserialization code in HDF5 through 2.1.1 on all platforms allows attackers to cause a denial of service (crash) via a crafted HDF5 file whose shared-message list index declares a num_messages count exceeding list_max, triggering out-of-bounds heap reads and writes in H5SM__cache_list_deserialize and H5SM__cache_list_verify_chksum.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.5 MEDIUM
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 0.96%
Affected Products (NVD)
VendorProductVersion
hdfgrouphdf5
𝑥
< 2.2.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
hdf5
bookworm
unimportant
bullseye
postponed
forky
unimportant
sid
2.2.0+repack-4
fixed
trixie
unimportant
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
hdf5
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
resolute
needs-triage
trusty
needs-triage
xenial
needs-triage
Azure Linux logo
Azure Linux Releases
Azure Package
Release
hdf5
Azure Linux 3.0
0:1.14.6-4.azl3
fixed
Common Weakness Enumeration
References
https://github.com/HDFGroup/hdf5/issues/6501