CVE-2025-25341: libxmljs DoS — Exploit

Description

A vulnerability exists in the libxmljs 1.0.11 when parsing a specially crafted XML document. Accessing the internal _ref property on entity_ref and entity_decl nodes causes a segmentation fault, potentially leading to a denial-of-service (DoS).

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-400 Uncontrolled Resource Consumption

Affected Products

Vendor	Product	Versions
libxmljs_project	libxmljs	All

References

Exploits

https://github.com/libxmljs/libxmljs/issues/667

Frequently Asked Questions

What is CVE-2025-25341? +

A vulnerability exists in the libxmljs 1.0.11 when parsing a specially crafted XML document. Accessing the internal _ref property on entity_ref and entity_decl nodes causes a segmentation fault, potentially leading to a denial-of-service (DoS). It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-25341? +

CVE-2025-25341 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-25341? +

CVE-2025-25341 affects products from libxmljs_project, specifically: libxmljs. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-25341? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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