CVE-2025-6856

HDF5 H5FL.c H5FL__reg_gc_list use after free

Published: Jun 29, 2025Updated: Apr 29, 2026 Sources: CVE List NVDCWE-119

3.3LOW

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:LAttack Vector

Local

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:NConfidentiality

None

I:NIntegrity

None

A:LAvailability

Low

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Weaknesses

CWE-119 CWE-416

Affected Products

hdfgroup

oss-project·USaka hdf5

hdf5LibraryLibrary

Databases

and 1 more affected products View all →

Exploitability

2 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Initial Access

Privilege Escalation

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References

https://vuldb.com/?id.314328

vuldb.com

https://vuldb.com/?ctiid.314328

vuldb.com

https://vuldb.com/?submit.602528

vuldb.com

and 2 more references View all →

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