CVE-2025-7067 HDF5 H5FScache.c H5FS__sinfo_serialize_node_cb heap-based overflow

Medium 4.8 Published 4 Jul 2025 Updated 8 Jul 2025

A heap-based buffer overflow in HDF5 allows local attackers to execute arbitrary code or cause denial of service via crafted files.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2025-7067?

CVE-2025-7067 is a medium-severity memory corruption vulnerability in Hdfgroup Hdf5, published on 4 Jul 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability classified as problematic was found in HDF5 1.14.6. This vulnerability affects the function H5FS__sinfo_serialize_node_cb of the file src/H5FScache.c. The manipulation leads to heap-based buffer overflow. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used.

Weakness: CWE-122, CWE-119

Which versions are affected by CVE-2025-7067?

It affects 1 product.

Products include Hdfgroup Hdf5.

How do I fix CVE-2025-7067?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-7067 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-7067 exists.

All Hdfgroup Hdf5 vulnerabilities

Sources

Also known as AZL-65157, AZL-65208, DEBIAN-CVE-2025-7067, ECHO-8347-7d53-6029, GHSA-rm7r-cf82-3c9w, JLSEC-2026-349 and 2 more.