CVE-2026-29111
published 2026-03-23CVE-2026-29111: 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…
medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
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 is not possible as the safety check causes an assert instead. This IPC call was added in v239, so versions older than that are not affected. Versions 260-rc1, 259.2, 258.5, and 257.11 contain patches. No known workarounds are available.
Affected
16 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | systemd | < systemd 260~rc2-1 (forky) | systemd 260~rc2-1 (forky) |
| msrc | azl3_systemd-bootstrap_250.3-18_on_azure_linux_3.0 | — | — |
| msrc | azl3_systemd_255-26_on_azure_linux_3.0 | — | — |
| msrc | cbl2_systemd-bootstrap_250.3-13_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_systemd_250.3-23_on_cbl_mariner_2.0 | — | — |
| systemd | systemd | — | — |
| systemd | systemd | — | — |
| systemd | systemd | — | — |
| systemd_project | systemd | >= 0 < 260~rc2-1 | 260~rc2-1 |
| systemd_project | systemd | >= 0 < 249.11-0ubuntu3.19 | 249.11-0ubuntu3.19 |
| systemd_project | systemd | >= 0 < 255.4-1ubuntu8.14 | 255.4-1ubuntu8.14 |
| systemd_project | systemd | >= 0 < 257.9-0ubuntu2.3 | 257.9-0ubuntu2.3 |
| systemd_project | systemd | >= 0 < 204-5ubuntu20.31+esm3 | 204-5ubuntu20.31+esm3 |
| systemd_project | systemd | >= 0 < 229-4ubuntu21.31+esm4 | 229-4ubuntu21.31+esm4 |
| systemd_project | systemd | >= 0 < 237-3ubuntu10.57+esm3 | 237-3ubuntu10.57+esm3 |
| systemd_project | systemd | >= 0 < 245.4-4ubuntu3.24+esm3 | 245.4-4ubuntu3.24+esm3 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM