Is CVE-2024-45490 actively exploited?

CVE-2024-45490 has no public evidence of in-the-wild exploitation as of 2025-11-04.

What is the CVSS score for CVE-2024-45490?

CVE-2024-45490 has a CVSS score of 7.5 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

How do I patch CVE-2024-45490?

Patch guidance is available from libexpat project security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2024-45490.

Which products are affected by CVE-2024-45490?

1 product: libexpat project libexpat.

Fix CVE-2024-45490 - HIGH libexpat project libexpat

Description

An issue was discovered in libexpat before 2.6.3. xmlparse.c does not reject a negative length for XML_ParseBuffer.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-611 · XML External Entity (XXE)CWE-190 · Integer Overflow

Metadata

Primary Vendor: LIBEXPAT_PROJECT
Published: 8/30/2024
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-2024-45490. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2024-45490

View on NIST NVD

CVE-2024-45490 vulnerability