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CVE-2022-2526 systemd

Affected softwaresystemd
Severity9.8 Critical CVSS 3.1
WeaknessUse after free (CWE-416)
Published9 Sep 2022
Updated17 Jun 2026

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.

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 4 years ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment no assessment published
  • Indexed PoC none indexed
  • EPSS 1.4% chance in 30 days

Waratek protection

Outside Waratek scope

A Java vulnerability, but not one Waratek protects. It affects only Java on a user's desktop (applets, Web Start, JavaFX, the installer), sits in a product the Waratek agent can't be installed into, or is in a package we don't expect in business applications. The decision below says which.

  • Protection none
  • Action not pursued none
  • Review human Researcher
  • Record active
Decided by Manual classification of this CVE in the legacy dataset
Finding A manual classification set this CVE's status to Outside Waratek scope, but the CVE names a tracked product.

Affected software and releases

Oracle advisories

AdvisoryTypeQuarterProducts Oracle names in its risk matrix
Oracle Critical Patch Update January 2023 ↗ CPU 2023-Q1 Oracle Communications / ATS Framework (systemd-libs) (22.2.2, 22.3.1, 22.4.0)

Oracle components and versions

FamilyComponentVersions, as Oracle lists themRead as
Oracle Communications ATS Framework (systemd-libs) 22.2.2, 22.3.1, 22.4.0 22.2.2 · 22.3.1 · 22.4.0

Products and versions

6 products, 6 version entries
SourceVendorProductSchemeAffected versions
nvd netapp active iq unified manager generic any version
nvd netapp h300s firmware generic any version
nvd netapp h410s firmware generic any version
nvd netapp h500s firmware generic any version
nvd netapp h700s firmware generic any version
nvd systemd project systemd generic 240

References

URLTags
https://github.com/systemd/systemd/commit/d973d94dec349fb676fdd844f6fe2ada3538f27c Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20221111-0005/ Third Party Advisory

Timeline

Published2022-09-09By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.