CVE-2025-44904 Memory corruption in n/a
A heap buffer overflow in the HDF5 library allows attackers to execute arbitrary code or cause denial of service via crafted files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-44904?
CVE-2025-44904 is a high-severity memory corruption vulnerability in Hdfgroup Hdf5, published on 30 May 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
hdf5 v1.14.6 was discovered to contain a heap buffer overflow via the H5VM_memcpyvv function.
Weakness: CWE-122
Which versions are affected by CVE-2025-44904?
It affects 1 product.
Products include Hdfgroup Hdf5.
How do I fix CVE-2025-44904?
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-2025-44904 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-44904 exists.
Other vulnerabilities in Hdfgroup Hdf5
Sources
Also known as AZL-72392, AZL-72812, DEBIAN-CVE-2025-44904, ECHO-0823-fa44-2353, GHSA-77wp-p4v3-xgj7, JLSEC-2026-337 and 1 more.