CVE-2025-2915: HDF5 H5Faccum.c H5F__accum_free heap-based overflow

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-119

Description

A vulnerability classified as problematic was found in HDF5 up to 1.14.6. This vulnerability affects the function H5F__accum_free of the file src/H5Faccum.c. The manipulation of the argument overlap_size leads to heap-based buffer overflow. Attacking locally is a requirement. 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/5380
https://vuldb.com/?ctiid.301888
https://vuldb.com/?id.301888
https://vuldb.com/?submit.520899
https://github.com/HDFGroup/hdf5/issues/5380

Get alerted when CVE-2025-2915 or the next vulnerability affects your stack