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CVE-2025-6856

Date: June 29, 2025

A vulnerability, which was classified as problematic, was found in HDF5 1.14.6. Affected is the function H5FL__reg_gc_list of the file src/H5FL.c. The manipulation leads to use after free. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.

Severity Score

Related Resources (8)

https://vuldb.com/?ctiid.314328
https://vuldb.com/?id.314328
https://security-tracker.debian.org/tracker/CVE-2025-6856
https://vuldb.com/?submit.602528
https://github.com/user-attachments/files/20623417/hdf5_crash_6.txt
https://nvd.nist.gov/vuln/detail/CVE-2025-6856
https://github.com/HDFGroup/hdf5/issues/5574
https://www.mend.io/vulnerability-database/CVE-2025-6856

Severity Score

Weakness Type (CWE)

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

Use After Free

CWE-416

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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