CVE-2025-6818 MEDIUM

CVE-2025-6818: HDF5 H5Ochunk.c H5O__chunk_protect heap-based overflow

Vendor N/A
Product HDF5
Weakness CWE-122
Published June 28, 2025
Last update June 30, 2025

CVSS base score

4.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 28, 2025 CVE published
June 30, 2025 Record updated