High severity · published Jun 29, 2025
CVE-2025-6857
HDF5 H5Gnode.c H5G__node_cmp3 stack-based overflow
7.8
CVSS
0.3%
EPSS
No
On KEV
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
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 21% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HD
HDF5 ·
1.14.6 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-6857
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-6857
Exploit
https://github.com/HDFGroup/hdf5/issues/5575
Exploit
https://github.com/user-attachments/files/20623442/hdf5_crash_7.txt
Permissions Required
https://vuldb.com/?ctiid.314329
Third Party Advisory
https://vuldb.com/?id.314329
Third Party Advisory
https://vuldb.com/?submit.602529
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