CVE-2025-6817

Publication date 28 June 2025

Last updated 27 February 2026

Ubuntu priority

Cvss 3 Severity Score

Description

A vulnerability, which was classified as problematic, has been found in HDF5 1.14.6. This issue affects the function H5C__load_entry of the file /src/H5Centry.c. The manipulation leads to resource consumption. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used.

Read the notes from the security team

Why is this CVE low priority?

Upstream rates this as being low severity

Learn more about Ubuntu priority

Status

Show unmaintained releases

Package	Ubuntu Release	Status
hdf5	26.04 LTS resolute	Vulnerable
	25.10 questing	Vulnerable
	25.04 plucky	Ignored end of life, was needs-triage
	24.10 oracular	Ignored end of life, was needs-triage
	24.04 LTS noble	Vulnerable
	22.04 LTS jammy	Vulnerable
	20.04 LTS focal	Vulnerable
	18.04 LTS bionic	Vulnerable
	16.04 LTS xenial	Ignored end of ESM support, was needed
	14.04 LTS trusty	Vulnerable

Notes

ebarretto

Same fix of CVE-2025-6858 and CVE-2025-2923

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
hdf5	Upstream: 7cc8b5e

Severity score breakdown

CVSS version: CVSS v3.0

Base score 3.3 · Low

Base metrics

Parameter	Value
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality impact	None
Integrity impact	None
Availability impact	Low

Scores

Parameter	Value
Base score	3.3 · Low
Exploitability score	-
Impact score	-

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L