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4.7Medium

CVE-2026-40223

systemd systemd Published: (7 months ago)

Description

In systemd 258 before 260, a local unprivileged user can trigger an assert when a Delegate=yes and User=<unset> unit exists and is running.

Weakness (CWE): CWE-696

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

VendorProductVersions
systemd systemd 258 – < 260

References and patches

CPE matches (NVD) (1)
  • cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:* ≥ 258 < 260

Recent CVEs in the same product — systemd

2.9Low
CVE-2026-40228
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In systemd 259, systemd-journald can send ANSI escape sequences to the terminals of arbitrary users when a "logger -p emerg" command is executed, if ForwardToWall=yes is set.

6.2Medium
CVE-2026-40227
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In systemd 260 before 261, a local unprivileged user can trigger an assert via an IPC API call with an array or map that has a null element.

6.4Medium
CVE-2026-40226
systemd systemd

In nspawn in systemd 233 through 259 before 260, an escape-to-host action can occur via a crafted optional config file.

6.4Medium
CVE-2026-40225
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In udev in systemd before 260, local root execution can occur via malicious hardware devices and unsanitized kernel output.

6.7Medium
CVE-2026-40224
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In systemd 259 before 260, there is local privilege escalation in systemd-machined because varlink can be used to reach the root namespace.

5.5Medium
CVE-2026-29111

systemd: Local unprivileged user can trigger an assert

systemd systemd

systemd, a system and service manager, (as PID 1) hits an assert and freezes execution when an unprivileged IPC API call is made with spurious data. On version v249 and older the effect is not an assert, but stack overwriting, with the attacker controlled con…