CVE-2025-2309 — MEDIUM (5.3)

Vulnerability Description

A vulnerability has been found in HDF5 1.14.6 and classified as critical. This vulnerability affects the function H5T__bit_copy of the component Type Conversion Logic. The manipulation leads to heap-based buffer overflow. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The vendor plans to fix this issue in an upcoming release.

CVSS Score

5.3

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

LOW

Affected Products

Vendor	Product	Versions
Hdfgroup	Hdf5	1.14.6

Related Weaknesses (CWE)

CWE-119 CWE-122 CWE-787

References

https://github.com/madao123123/crash_report/blob/main/hdf5_poc/hdf5_poc3.mdExploitThird Party Advisory
https://vuldb.com/?ctiid.299722Permissions RequiredVDB Entry
https://vuldb.com/?id.299722Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.514532Third Party AdvisoryVDB Entry

FAQ

What is CVE-2025-2309?

CVE-2025-2309 is a vulnerability with a CVSS score of 5.3 (MEDIUM). A vulnerability has been found in HDF5 1.14.6 and classified as critical. This vulnerability affects the function H5T__bit_copy of the component Type Conversion Logic. The manipulation leads to heap-b...

How severe is CVE-2025-2309?

CVE-2025-2309 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-2309?

Check the references section above for vendor advisories and patch information. Affected products include: Hdfgroup Hdf5.