CVE-2025-6750

HDF5 H5Omtime.c H5O__mtime_new_encode heap-based overflow

CVE-2025-6750 is fixed in hdf5 on 1 platform by DEBIAN-CVE-2025-6750 (version 2.1.0+repack-1), released June 27, 2025. It is not reported as exploited. Patch Radar priority: Routine.

Routine

CVSS

3.3

No vendor severity

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0025

16th percentile

A vulnerability, which was classified as problematic, has been found in HDF5 1.14.6. Affected by this issue is the function H5O__mtime_new_encode of the file src/H5Omtime.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.

Where it's fixed

Product	Fixed in	Fix	Released
Linux
hdf5 · Debian 14	2.1.0+repack-1	DEBIAN-CVE-2025-6750	Jun 27, 2025

Details

Published
June 27, 2025
Weakness
Heap-based Buffer Overflow
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-6750

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