CVE-2025-2310: HDF5 Metadata Attribute Decoder H5MM_strndup heap-based overflow

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-03-14 · updated 2026-06-17
Weakness: CWE-119

Description

A vulnerability was found in HDF5 1.14.6 and classified as critical. This issue affects the function H5MM_strndup of the component Metadata Attribute Decoder. The manipulation leads to heap-based buffer overflow. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. The vendor plans to fix this issue in an upcoming release.

Affected products

HDF5: 1.14.6

References

https://github.com/madao123123/crash_report/blob/main/hdf5_poc/hdf5_poc4.md
https://vuldb.com/?ctiid.299723
https://vuldb.com/?id.299723
https://vuldb.com/?submit.514533

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