Input Validation and Logic

Every one of the 4 is a mark on the map. Named now: 1 to 4, most at risk first.

1. The manager_dispatch_notify_fd function in systemd allows local users to cause a denial of service (system hang) via a zero-length message received over a notify socket, which cau…CVE-2016-7796Systemd Project · 0.9% likely

   CWE-20

2. The manager_invoke_notify_message function in systemd 231 and earlier allows local users to cause a denial of service (assertion failure and PID 1 hang) via a zero-length message…CVE-2016-7795Systemd Project · 0.6% likely

   CWE-20

3. 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.CVE-2026-40227systemd · CVSS 6.2 · 0.2% likely

   CWE-1025

4. 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.CVE-2026-40223systemd · CVSS 4.7 · 0.1% likely

   CWE-696

exploited in the wildcheck availableringed, named or not: CyberSIXT has reported on it

Zoom in on the map and the dots under the middle of it are named where they are.