Heap-based Buffer Overflow Affecting hdf5 package, versions [,1.14.4.3)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published22 Apr 2026
- disclosed10 Apr 2026
- creditUnknown
Introduced: 10 Apr 2026
NewCVE-2026-29043 (opens in a new tab)How to fix?
Upgrade hdf5 to version 1.14.4.3 or higher.
Overview
Affected versions of this package are vulnerable to Heap-based Buffer Overflow in the H5T__ref_mem_setnull() function. An attacker can cause a heap buffer overflow by supplying a specially crafted HDF5 (.h5) file, which may result in denial of service or potentially allow execution of arbitrary code.