CVE-2025-2926: HDF5 H5Ocache.c H5O__cache_chk_serialize null pointer dereference

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-03-28 · updated 2026-06-17
Weakness: CWE-404

Description

A vulnerability was found in HDF5 up to 1.14.6 and classified as problematic. This issue affects the function H5O__cache_chk_serialize of the file src/H5Ocache.c. The manipulation leads to null pointer dereference. An attack has to be approached locally. The exploit has been disclosed to the public and may be used.

Affected products

HDF5: through 1.14.6

References

https://github.com/HDFGroup/hdf5/issues/5384
https://vuldb.com/?ctiid.301901
https://vuldb.com/?id.301901
https://vuldb.com/?submit.521246
https://github.com/HDFGroup/hdf5/issues/5384

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