What’s Vulnerable › Vulnerabilities

CVE-2025-6858: HDF5 H5Centry.c H5C__flush_single_entry null pointer dereference

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-06-29 · updated 2026-06-17
• Weakness: CWE-404

Description

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.

Affected products

• HDF5: 1.14.6

References

• https://github.com/HDFGroup/hdf5/issues/5576
• https://github.com/user-attachments/files/20623475/hdf5_crash_8.txt
• https://vuldb.com/?ctiid.314330
• https://vuldb.com/?id.314330
• https://vuldb.com/?submit.602530

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