Is CVE-2022-40674 actively exploited?

CVE-2022-40674 has no public evidence of in-the-wild exploitation as of 2025-05-30.

What is the CVSS score for CVE-2022-40674?

CVE-2022-40674 has a CVSS score of 8.1 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2022-40674?

Patch guidance is available from libexpat project security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2022-40674.

Fix CVE-2022-40674 - HIGH libexpat project libexpat

Q: Which products are affected by CVE-2022-40674?

6 products: libexpat project libexpat, debian debian linux, debian debian linux, fedoraproject fedora, fedoraproject fedora, and 1 more.

Description

libexpat before 2.4.9 has a use-after-free in the doContent function in xmlparse.c.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: high
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-416 · Use After Free CWE-416 · Use After Free

Metadata

Primary Vendor: LIBEXPAT_PROJECT
Published: 9/14/2022
Last Modified: 5/30/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

libexpat_project : libexpatdebian : debian_linuxdebian : debian_linuxfedoraproject : fedorafedoraproject : fedorafedoraproject : fedora

Remediation Guidance

Executive Summary

Cite this page

CVE-2022-40674. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2022-40674

View on NIST NVD

CVE-2022-40674 vulnerability