CVE-2026-17572CWE-125CWE-787

CVE-2026-17572

Medium · published July 27, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
3.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00141 · 3.1th percentile
Weaknesses
CWE-125 · Out-of-bounds Read; CWE-787 · Out-of-bounds Write
Published
2026-07-27T20:17Z
Affected products (1)
ProductVersionsFixed in
hdfgroup/hdf5< 2.2.02.2.0
References (1)
https://github.com/HDFGroup/hdf5/issues/6501 · 0253b833-3e77-4dfe-9d57-17db1a2f0a74
EPSS history
Timeline
  • 27 JUL 15:11Z
    HDF5 SOHM List Index Heap Buffer Overflow
    cvelistv5