PT-2026-31938 · Hdf5 · Hdf5

CVE-2026-29043 · Published 2026-04-10 · Updated 2026-04-10

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions HDF5 versions prior to 1.14.1-3

Description An attacker capable of controlling an h5 file parsed by the software can trigger a write-based heap buffer overflow in the H5T ref mem setnull() function. This condition may result in a denial-of-service or potentially lead to remote code execution, depending on the exploitability of the heap overflow on modern operating systems.

Recommendations Update to a version later than 1.14.1-2.

Exploit

Fix

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

CVE-2026-29043

ECHO-0F49-5D12-5BD0

GHSA-QM2M-5G5W-2277

Affected Products

Hdf5

References · 9

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29043.json · Exploit
• https://github.com/HDFGroup/hdf5/security/advisories/GHSA-qm2m-5g5w-2277 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-29043 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-29043 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-29043 · Security Note
• https://ubuntu.com/security/CVE-2026-29043 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-29043 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-29043 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-29043 · Vendor Advisory