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CVE-2026-17572mediumCWE-125CWE-787

HDF5 SOHM List Index Heap Buffer Overflow

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.5epss 0.1%
exploitation probability
0.1%top 98% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:H/SC:N/SI:L/SA:H/E:U
Affected products
The HDF Group · HDF5