Is CVE-2023-52426 actively exploited?

CVE-2023-52426 has no public evidence of in-the-wild exploitation as of 2025-11-04.

What is the CVSS score for CVE-2023-52426?

CVE-2023-52426 has a CVSS score of 5.5 (MEDIUM severity). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

How do I patch CVE-2023-52426?

Patch guidance is available from libexpat project security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2023-52426.

Which products are affected by CVE-2023-52426?

1 product: libexpat project libexpat.

CVE-2023-52426 - remediation guidance & executive summary

Description

libexpat through 2.5.0 allows recursive XML Entity Expansion if XML_DTD is undefined at compile time.

CVSS Metrics

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector: local
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-776 CWE-776

Metadata

Primary Vendor: LIBEXPAT_PROJECT
Published: 2/4/2024
Last Modified: 11/4/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

libexpat_project : libexpat

Remediation Guidance

Executive Summary

Cite this page

CVE-2023-52426. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2023-52426

View on NIST NVD

CVE-2023-52426 vulnerability