CVE-2025-6816

low-risk
Published 2025-06-28

A vulnerability classified as problematic was found in HDF5 1.14.6. This vulnerability affects the function H5O__fsinfo_encode of the file /src/H5Ofsinfo.c. The manipulation leads to heap-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.

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
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.3/10 Low
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Hdfgroup

References (6)

Exploit https://github.com/HDFGroup/hdf5/issues/5571
Exploit https://github.com/user-attachments/files/20623354/hdf5_crash_3.txt
Permissions Required https://vuldb.com/?ctiid.314254
Third Party Advisory https://vuldb.com/?id.314254
Third Party Advisory https://vuldb.com/?submit.602291
Exploit https://github.com/HDFGroup/hdf5/issues/5571
18
/ 100
low-risk
Severity 13/34 · Low
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal