CVE-2025-2913

HDF5 H5FL.c H5FL__blk_gc_list use after free

MEDIUM
5.3
CVSS Score
Published: March 28, 2025 at 04:31 PM UTC
Updated: June 17, 2026 at 09:07 AM UTC
1 product affected across 1 vendorHDF5

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.3%
SSVC
PoC

Description

A vulnerability was found in HDF5 up to 1.14.6. It has been rated as critical. Affected by this issue is the function H5FL__blk_gc_list of the file src/H5FL.c. The manipulation of the argument H5FL_blk_head_t leads to use after free. An attack has to be approached locally. The exploit has been disclosed to the public and may be used.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Affected range stops below 1.14.6, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (4)

ExploitIssue TrackingVendor Advisory
https://github.com/HDFGroup/hdf5/issues/5376
SignaturePermissions RequiredVDB Entry
https://vuldb.com/?ctiid.301886
VDB EntryTechnical DescriptionThird Party Advisory
https://vuldb.com/?id.301886
Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.520404

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusANALYZED
CWE
CWE-119CWE-416

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