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Vulnerability DatabaseCVE-2025-6270

CVE-2025-6270: 
HDF5 vulnerability analysis and mitigation

Overview

A critical vulnerability has been discovered in HDF5 versions up to 1.14.6, identified as CVE-2025-6270. The vulnerability affects the H5FS_sectfind_node function in the H5FSsection.c file. This heap-based buffer overflow vulnerability was discovered on June 6, 2025, and publicly disclosed on June 19, 2025 (GitHub Issue, VulDB).

Technical details

The vulnerability occurs in the H5FS_sectfind_node function when attempting to remove the first element from a potentially empty or invalid skip list. The manipulation leads to a heap-based buffer overflow, which can result in out-of-bounds memory read. The issue has been classified under CWE-122 (Heap-based Buffer Overflow) and CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer). The vulnerability has received a CVSS v3.1 base score of 5.3 (MEDIUM) (VulDB).

Impact

The vulnerability affects the confidentiality, integrity, and availability of the system. When exploited, it can lead to undefined behavior or system crashes. The attack requires local access to be executed (VulDB).

Mitigation and workarounds

Currently, there are no known official mitigations or workarounds for this vulnerability. It is recommended to consider replacing the affected software with an alternative product until a patch is available (VulDB).

Additional resources

Source: This report was generated using AI

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