CVE-2025-6516

low-risk
Published 2025-06-23

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.

Do I need to act?

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0.05% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Hdfgroup

References (5)

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
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal