CVE-2025-6816

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.

• CWE-119
• CWE-122

• https://github.com/HDFGroup/hdf5/issues/5571Exploit, Issue Tracking
• https://github.com/user-attachments/files/20623354/hdf5_crash_3.txtExploit
• https://vuldb.com/?ctiid.314254Permissions Required, VDB Entry
• https://vuldb.com/?id.314254Third Party Advisory, VDB Entry
• https://vuldb.com/?submit.602291Third Party Advisory, VDB Entry
• https://github.com/HDFGroup/hdf5/issues/5571Exploit, Issue Tracking

Published

Jun 28, 2025

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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