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Hdf5 CVE-2025-6818

| EUVDEUVD-2025-19452 LOW
Buffer Overflow (CWE-119)
2025-06-28 cna@vuldb.com
Buffer Overflow Hdf5
1.9
CVSS 4.0 · NVD

Severity by source

NVD PRIMARY
1.9 LOW
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Ubuntu
LOW
qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

7
CVSS changed
Apr 29, 2026 - 01:11 NVD
3.3 (LOW) 1.9 (LOW)
Patch released
Mar 31, 2026 - 21:13 nvd
Patch available
EUVD ID Assigned
Mar 16, 2026 - 01:05 euvd
EUVD-2025-19452
Analysis Generated
Mar 16, 2026 - 01:05 vuln.today
PoC Detected
Jul 08, 2025 - 14:45 vuln.today
Public exploit code
CVE Published
Jun 28, 2025 - 16:15 cve.org
LOW 1.9
CVE Published
Jun 28, 2025 - 16:15 nvd
LOW 3.3

DescriptionCVE.org

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.

AnalysisAI

Heap-based buffer overflow in HDF5 1.14.6 allows local attackers with low privileges to cause denial of service via crafted input to the H5O__chunk_protect function. A public exploit is available, though no active exploitation (CISA KEV) has been confirmed. The vulnerability is rated low severity due to local access requirements and limited impact to availability only.

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CVE-2018-13876 CRITICAL POC
9.8 Jul 10

An issue was discovered in the HDF HDF5 1.8.20 library. Rated critical severity (CVSS 9.8), this vulnerability is remote
CVE-2018-13874 CRITICAL POC
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CVE-2018-13873 CRITICAL POC
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CVE-2018-13867 CRITICAL POC
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CVE-2018-13866 CRITICAL POC
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CVE-2017-17509 HIGH POC
8.8 Dec 11

In HDF5 1.10.1, there is an out of bounds write vulnerability in the function H5G__ent_decode_vec in H5Gcache.c in libhd
CVE-2025-44904 HIGH POC
8.8 May 30

hdf5 v1.14.6 was discovered to contain a heap buffer overflow via the H5VM_memcpyvv function. Rated high severity (CVSS

Same weakness CWE-119 – Buffer Overflow

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CVE-2020-0796 CRITICAL POC
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CVE-2013-3918 HIGH POC
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CVE-2023-4966 HIGH POC
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CVE-2017-11774 HIGH POC
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CVE-2013-3660 HIGH POC
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Same technique Buffer Overflow

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CVE-2017-7269 CRITICAL POC
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CVE-2015-5119 CRITICAL POC
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CVE-2015-3113 CRITICAL POC
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CVE-2011-2462 CRITICAL POC
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CVE-2009-0927 HIGH POC
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CVE-2012-1889 HIGH POC
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CVE-2017-11882 HIGH POC
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Vendor StatusVendor

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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