CVE-2026-29111

CVE-2026-29111: systemd local unprivileged user can trigger an assert via an unprivileged IPC API call with spurious data. The issue affects versions from v239 onward; older than v239 are not affected, while v249 and older exhibited stack overwriting, attacker-controlled content. Patches exist in...

CVE-2026-29111 systemd: Local unprivileged user can trigger an assert

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 content. From version v250 and newer this i...