Is CVE-2022-43680 actively exploited?

CVE-2022-43680 has no public evidence of in-the-wild exploitation as of 2025-05-30.

What is the CVSS score for CVE-2022-43680?

CVE-2022-43680 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-2022-43680?

Patch guidance is available from libexpat project security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2022-43680.

Fix CVE-2022-43680 - HIGH libexpat project libexpat

Q: Which products are affected by CVE-2022-43680?

15 products: libexpat project libexpat, debian debian linux, debian debian linux, fedoraproject fedora, fedoraproject fedora, and 10 more.

Description

In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations.

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-416 · Use After Free CWE-416 · Use After Free

Metadata

Primary Vendor: LIBEXPAT_PROJECT
Published: 10/24/2022
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 : fedoranetapp : h300s_firmwarenetapp : h500s_firmwarenetapp : h700s_firmwarenetapp : h410s_firmwarenetapp : h410c_firmwarenetapp : active_iq_unified_managernetapp : oncommand_workflow_automationnetapp : solidfire_\&_hci_management_nodenetapp : hci_compute_node_firmware

Remediation Guidance

Executive Summary

Cite this page

CVE-2022-43680. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2022-43680

View on NIST NVD

CVE-2022-43680 vulnerability