Incorrect Behavior Order Affecting libsystemd package, versions [0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CONAN-LIBSYSTEMD-16032165
- published14 Apr 2026
- disclosed10 Apr 2026
- creditKy0toFu
Introduced: 10 Apr 2026
CVE-2026-40223 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Incorrect Behavior Order in the Delegate process when the User parameter is unset and the unit is running. An attacker can cause a system service to terminate unexpectedly by creating or manipulating a unit with these settings. This is only exploitable if a unit is configured with Delegate=yes and does not set the User parameter.