Is CVE-2022-2526 actively exploited?

CVE-2022-2526 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2022-2526?

CVE-2022-2526 has a CVSS score of 9.8 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2022-2526?

Patch guidance is available from systemd project security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2022-2526.

Fix CVE-2022-2526 - CRITICAL systemd project systemd

Q: Which products are affected by CVE-2022-2526?

6 products: systemd project systemd, netapp active iq unified manager, netapp h300s firmware, netapp h500s firmware, netapp h700s firmware, and 1 more.

Description

A use-after-free vulnerability was found in systemd. This issue occurs due to the on_stream_io() function and dns_stream_complete() function in 'resolved-dns-stream.c' not incrementing the reference counting for the DnsStream object. Therefore, other functions and callbacks called can dereference the DNSStream object, causing the use-after-free when the reference is still used later.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
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: SYSTEMD_PROJECT
Published: 9/9/2022
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

systemd_project : systemdnetapp : active_iq_unified_managernetapp : h300s_firmwarenetapp : h500s_firmwarenetapp : h700s_firmwarenetapp : h410s_firmware

Remediation Guidance

Executive Summary

Cite this page

CVE-2022-2526. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2022-2526

View on NIST NVD

CVE-2022-2526 vulnerability