What is CVE-2025-6497?

CVE-2025-6497 is a low-severity vulnerability in Htacg Tidy-Html5, classified under Reachable Assertion. CVSS score: 3.3/10. Published 2025-06-23.

How severe is CVE-2025-6497?

Low severity. CVSS v3 base score is 3.3 out of 10.

Vulnerability in Htacg Tidy-Html5

CVE-2025-6497

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.

EPSS: 0.001 (3.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

Affected products

Htacg Tidy-html5 — versions 5.8.0

Weakness classification (CWE)

CWE-617 — Reachable Assertion

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (issue-tracking)
cna@vuldb.com (exploit)

Frequently asked questions

What is CVE-2025-6497?: CVE-2025-6497 is a low-severity vulnerability in Htacg Tidy-Html5, classified under Reachable Assertion. CVSS score: 3.3/10. Published 2025-06-23.
How severe is CVE-2025-6497?: Low severity. CVSS v3 base score is 3.3 out of 10.