CVE-2025-6818

low-risk
Published 2025-06-28

A vulnerability, which was classified as problematic, was found in HDF5 1.14.6. Affected is the function H5O__chunk_protect of the file /src/H5Ochunk.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
3
CVSS 3.3/10 Low
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Hdfgroup

References (6)

Exploit https://github.com/HDFGroup/hdf5/issues/5573
Exploit https://github.com/user-attachments/files/20623382/hdf5_crash_5.txt
Permissions Required https://vuldb.com/?ctiid.314256
Third Party Advisory https://vuldb.com/?id.314256
Third Party Advisory https://vuldb.com/?submit.602326
Exploit https://github.com/HDFGroup/hdf5/issues/5573
18
/ 100
low-risk
Severity 13/34 · Low
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal