CVE-2025-6818: HDF5 H5Ochunk.c H5O__chunk_protect heap-based overflow
A vulnerability, which was classified as problematic, was found in HDF5 1.14.6. Affected is the function H5Ochunkprotect 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.
Other sources
HDF5 H5Ochunk.c H5Ochunkprotect heap-based overflow
— Microsoft
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-6818?
CVE-2025-6818 is classified as problematic due to its potential to cause a heap-based buffer overflow.
Which software is affected by CVE-2025-6818?
CVE-2025-6818 affects HDF5 version 1.14.6.
How do I fix CVE-2025-6818?
To mitigate CVE-2025-6818, you should update to a patched version of HDF5 that addresses the vulnerability.
What type of exploitation is possible with CVE-2025-6818?
The exploitation of CVE-2025-6818 requires local access to the affected system.
What component of HDF5 is impacted by CVE-2025-6818?
CVE-2025-6818 impacts the function H5O__chunk_protect in the file /src/H5Ochunk.c.