PT-2025-26623 · Hdf5+1 · Hdf5+1

Rulkallos · Published 2025-06-23 · Updated 2026-01-16 · CVE-2025-6516

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: HDF5 versions up to 1.14.6

Description: A critical vulnerability has been found in HDF5, affecting the function H5F addr decode len of the file /hdf5/src/H5Fint.c. The manipulation leads to a heap-based buffer overflow. An attack must be approached locally. The exploit has been disclosed to the public and may be used.

Recommendations: For HDF5 versions up to 1.14.6, as a temporary workaround, consider disabling the H5F addr decode len function until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Buffer Overflow

Heap Based Buffer Overflow

Memory Corruption

Weakness Enumeration

CWE-119

CWE-122

CWE-787

Related Identifiers

CVE-2025-6516

ECHO-961B-7868-8727

OESA-2026-1131

OESA-2026-1132

OESA-2026-1133

OESA-2026-1134

OESA-2026-1135

Affected Products

Debian

Hdf5

References · 45

• 🔥 https://github.com/HDFGroup/hdf5/issues/5581 · Exploit
• 🔥❌ https://github.com/user-attachments/files/20626851/reproduce.tar.gz · Exploit, Deleted
• https://security-tracker.debian.org/tracker/CVE-2025-6516 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-6816 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-6857 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-6269 · Security Note
• https://osv.dev/vulnerability/CVE-2025-6516 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-2925 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-2310 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-6750 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-6818 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-7067 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-2153 · Security Note
• https://cve.org/CVERecord?id=CVE-2025-6516 · Security Note
• https://osv.dev/vulnerability/OESA-2026-1132 · Vendor Advisory