High severity · published Jun 23, 2025
CVE-2025-6516
HDF5 H5Fint.c H5F_addr_decode_len heap-based overflow
7.8
CVSS
0.4%
EPSS
No
On KEV
Description
A vulnerability has been found in HDF5 up to 1.14.6 and classified as critical. This vulnerability affects the function H5F_addr_decode_len of the file /hdf5/src/H5Fint.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. 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)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HD
HDF5 ·
1.14.0; 1.14.1; 1.14.2; 1.14.3; 1.14.4; 1.14.5; +1 more · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-6516
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-6516
Exploit
https://github.com/HDFGroup/hdf5/issues/5581
Exploit
https://github.com/user-attachments/files/20626851/reproduce.tar.gz
Permissions Required
https://vuldb.com/?ctiid.313636
Third Party Advisory
https://vuldb.com/?id.313636
Third Party Advisory
https://vuldb.com/?submit.592589
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