CVE-2025-6818

| EUVD-2025-19452 LOW
2025-06-28 [email protected]
3.3
CVSS 3.1

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

Lifecycle Timeline

5
Patch Released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 16, 2026 - 01:05 vuln.today
EUVD ID Assigned
Mar 16, 2026 - 01:05 euvd
EUVD-2025-19452
PoC Detected
Jul 08, 2025 - 14:45 vuln.today
Public exploit code
CVE Published
Jun 28, 2025 - 16:15 nvd
LOW 3.3

Description

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.

Analysis

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.

Technical Context

A buffer overflow occurs when data written to a buffer exceeds its allocated size, potentially overwriting adjacent memory and corrupting program state.

Affected Products

Affected products: Hdfgroup Hdf5 1.14.6

Remediation

Use memory-safe languages or bounds-checked functions. Enable ASLR, DEP/NX, and stack canaries. Apply vendor patches promptly.

Priority Score

37
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +16
POC: +20

Vendor Status

Ubuntu

Priority: Low
hdf5
Release Status Version
plucky ignored end of life, was needs-triage
upstream released 2.0.0
oracular ignored end of life, was needs-triage
questing needed -
bionic not-affected code not present
focal needed -
jammy needed -
noble needed -
trusty not-affected code not present
xenial not-affected code not present

Debian

Bug #1108480
hdf5
Release Status Fixed Version Urgency
bullseye vulnerable 1.10.6+repack-4+deb11u1 -
bookworm vulnerable 1.10.8+repack1-1 -
trixie vulnerable 1.14.5+repack-3 -
forky, sid vulnerable 1.14.6+repack-2 -
(unstable) fixed (unfixed) unimportant

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CVE-2025-6818 vulnerability details – vuln.today

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