EUVD-2025-18861

| CVE-2025-6498 LOW
2025-06-23 [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 15, 2026 - 22:10 vuln.today
EUVD ID Assigned
Mar 15, 2026 - 22:10 euvd
EUVD-2025-18861
PoC Detected
Sep 30, 2025 - 18:21 vuln.today
Public exploit code
CVE Published
Jun 23, 2025 - 02:15 nvd
LOW 3.3

Description

A vulnerability classified as problematic has been found in HTACG tidy-html5 5.8.0. Affected is the function defaultAlloc of the file src/alloc.c. The manipulation leads to memory leak. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.

Analysis

A vulnerability classified as problematic has been found in HTACG tidy-html5 5.8.0. Affected is the function defaultAlloc of the file src/alloc.c. The manipulation leads to memory leak. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.

Technical Context

This vulnerability is classified as Memory Leak (CWE-401).

Affected Products

Affected products: Htacg Tidy 5.8.0

Remediation

Monitor vendor advisories for patches. Apply mitigations such as network segmentation, access restrictions, and monitoring.

Priority Score

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

Vendor Status

Ubuntu

Priority: Medium
tidy-html5
Release Status Version
upstream needs-triage -
bionic deferred 2026-03-11
focal deferred 2026-03-11
jammy deferred 2026-03-11
noble deferred 2026-03-11
oracular ignored end of life, was deferred [2026-03-11]
questing deferred 2026-03-11
plucky ignored end of life, was deferred [2026-03-11]

Debian

Bug #1108233
tidy-html5
Release Status Fixed Version Urgency
bookworm, bullseye vulnerable 2:5.6.0-11 -
trixie vulnerable 2:5.8.0-2 -
forky, sid vulnerable 2:5.8.0-2.1 -
(unstable) fixed (unfixed) -

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EUVD-2025-18861 vulnerability details – vuln.today

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