EUVD-2026-21394
Incorrect Behavior Order (CWE-696)
GHSA-52rm-r39v-fwv9
4.7
CVSS 3.1
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CVSS VectorNVD
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Lifecycle Timeline
4
Patch available
Apr 16, 2026 - 05:29 EUVD
260
EUVD ID Assigned
Apr 10, 2026 - 15:30 euvd
EUVD-2026-21394
Analysis Generated
Apr 10, 2026 - 15:30 vuln.today
CVE Published
Apr 10, 2026 - 15:10 nvd
MEDIUM 4.7
DescriptionNVD
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.
AnalysisAI
Local denial of service in systemd 258 through 259 allows unprivileged users to trigger an assertion failure by interacting with service units configured with Delegate=yes and no explicit User setting, causing the systemd daemon to crash. The vulnerability requires local access and specific unit configuration but poses moderate risk to system availability with a CVSS score of 4.7 and no active exploitation currently identified.
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External POC / Exploit Code
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