Which versions of HTACG are affected by CVE-2025-6497?

CVE-2025-6497 is a low-severity vulnerability in A vulnerability (CVSS 3.3). The limited severity suggests constrained impact, typically requiring specific conditions or local access for…. A patch is available.

How to fix or mitigate CVE-2025-6497?

During next maintenance window: Apply vendor patches when convenient. Monitor vendor channels for updates.

HTACG CVE-2025-6497

Q: What is the CVSS score of CVE-2025-6497?

CVE-2025-6497 has a CVSS 4.0 base score of 1.9 (Low). CVSS vector: 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. EPSS exploitation probability: 0.0%.

EUVD-2025-18860 LOW

Reachable Assertion (CWE-617)

2025-06-23 cna@vuldb.com

Denial Of Service

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

MEDIUM

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

Lifecycle Timeline

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 15, 2026 - 22:10 euvd

EUVD-2025-18860

Analysis Generated

Mar 15, 2026 - 22:10 vuln.today

CVE Published

Jun 23, 2025 - 01:15 nvd

LOW 3.3

DescriptionCVE.org

A vulnerability was found in HTACG tidy-html5 5.8.0. It has been rated as problematic. This issue affects the function prvTidyParseNamespace of the file src/parser.c. The manipulation leads to reachable assertion. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.

Analysis

Same weakness CWE-617 – Reachable Assertion

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CVE-2016-8864 HIGH

7.5

CVE-2020-12417 HIGH POC

8.8

CVE-2020-6623 HIGH POC

8.8

CVE-2020-6619 HIGH POC

8.8

CVE-2020-6617 HIGH POC

8.8

CVE-2023-37023 HIGH POC

8.6

CVE-2023-37021 HIGH POC

8.6

CVE-2023-37020 HIGH POC

8.6

Same technique Denial Of Service

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CVE-2015-5119 CRITICAL POC

9.8

CVE-2011-2462 CRITICAL POC

9.8

CVE-2011-0611 HIGH POC

8.8

CVE-2012-1889 HIGH POC

8.8

CVE-2012-0507 CRITICAL POC

9.8

CVE-2014-1761 HIGH POC

7.8

CVE-2015-5122 CRITICAL POC

9.8

CVE-2011-0609 HIGH POC

7.8

Vendor StatusVendor

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]
plucky	ignored	end of life, was deferred [2026-03-11]
questing	deferred	2026-03-11

Debian

Bug #1108234

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)	-

CVE-2025-6497 vulnerability details – vuln.today

Back

HTACG CVE-2025-6497

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

Analysis

Same weakness CWE-617 – Reachable Assertion

Same technique Denial Of Service

Vendor StatusVendor

Ubuntu

Debian

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External POC / Exploit Code