CVE-2025-6269

HDF5 H5Cimage.c H5C__reconstruct_cache_entry heap-based overflow

State: Published
Severity: 4.8 Medium
Published: Jun 19, 2025
Updated: Jun 23, 2025
Reserved: Jun 19, 2025

Description

A vulnerability classified as critical was found in HDF5 up to 1.14.6. Affected by this vulnerability is the function H5C__reconstruct_cache_entry of the file H5Cimage.c. 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.

Scores

CVSS	Score	Vector	Source
4.0	4.8 Medium	CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P	VulDB
3.1	5.3 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	VulDB
3.0	5.3 Medium	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	VulDB
2.0	4.3 Medium	AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR	VulDB

Weaknesses

CWE-122 Heap-based Buffer Overflow
CWE-119 Memory Corruption

Affected Products

Product	Versions
HDF5n/a	1.14.0Affected 1.14.1Affected 1.14.2Affected 1.14.3Affected 1.14.4Affected 1.14.5Affected 1.14.6Affected

References

VDB-313273 | HDF5 H5Cimage.c H5C__reconstruct_cache_entry heap-based overflowvdb-entrytechnical-description
VDB-313273 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
Submit #592587 | HDF5 1.14.6 Heap-based Buffer Overflowthird-party-advisory
https://github.com/HDFGroup/hdf5/issues/5579issue-tracking
https://github.com/user-attachments/files/20626503/reproduce.tar.gzexploit

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