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CVE-2025-6857

HDF5 H5Gnode.c H5G__node_cmp3 stack-based overflow

Published: Jun 29, 2025Updated: Apr 29, 2026 Sources: CVE List NVDCWE-119
NVD MITRE
3.3CVSSLOW
EPSS Score
0.2%
Top 86.9%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
No Fix Available

Description

A vulnerability has been found in HDF5 1.14.6 and classified as problematic. Affected by this vulnerability is the function H5G__node_cmp3 of the file src/H5Gnode.c. The manipulation leads to stack-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:NI:NA:L
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-119CWE-121

Affected Products

hdf5hdfgroup
LibraryLibrary
Databases
HDF5n/a
hdfgrouposs-projectUSDatabasesaka hdf5

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

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

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MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
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References

https://github.com/HDFGroup/hdf5/issues/5575
github.com
https://github.com/user-attachments/files/20623442/hdf5_crash_7.txt
github.com
https://vuldb.com/?ctiid.314329
vuldb.com
and 2 more references View all →

Timeline

Published
Jun 29, 2025
Last Updated
Apr 29, 2026

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