NULL pointer dereference in Hdfgroup Hdf5
CVE-2025-6858
A vulnerability was found in HDF5 1.14.6 and classified as problematic. Affected by this issue is the function H5C__flush_single_entry of the file src/H5Centry.c. The manipulation leads to null pointer dereference. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.002 (11.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 11.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Hdfgroup Hdf5 — versions 1.14.6
- Hdf5 — versions 1.14.6
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/HDFGroup/hdf5/issues/5576 (issue-tracking, Exploit, Third Party Advisory, Issue Tracking)
- github.com/user-attachments/files/20623475/hdf5_crash_8.txt (Exploit, exploit)
Frequently asked questions
- What is CVE-2025-6858?
- CVE-2025-6858 is a low-severity vulnerability in Hdfgroup Hdf5, classified under Improper Resource Shutdown or Release. CVSS score: 3.3/10. Published 2025-06-29.
- How severe is CVE-2025-6858?
- Low severity. CVSS v3 base score is 3.3 out of 10.