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SUSE Linux Micro 6.1 Important Systemd Privilege Escalation 20826-1

suse
Calendar Grey March 26, 2026
Dist Suse Esm H88
Critical update for SUSE systemd resolves two issues including privilege escalation; system reboot recommended post-installation.
An update that solves two vulnerabilities and has one fix can now be installed.

Summary

## This update for systemd fixes the following issues: * CVE-2026-4105: privilege escalation due to improper access control in RegisterMachine D-Bus method (bsc#1259650). * CVE-2026-29111: local unprivileged user can trigger an assert in systemd (bsc#1259418). * udev: check for invalid chars in various fields received from the kernel (bsc#1259697). Changelog: * a943e3ce2f machined: reject invalid class types when registering machines * 71593f77db udev: fix review mixup * 73a89810b4 udev-builtin-net-id: print cescaped bad attributes * 0f360bfdc0 udev-builtin-net_id: do not assume the current interface name is ethX * 40905232e2 udev: ensure tag parsing stays within bounds * 7bce9026e3 udev: ensure there is space for trailing NUL before calling sprintf

Topics%20covered

Topics Covered

security advisory SuSE privilege escalation access control important systemd

References

* bsc#1259418

* bsc#1259650

* bsc#1259697

Cross-

* CVE-2026-29111

* CVE-2026-4105

CVSS scores:

* CVE-2026-29111 ( SUSE ): 6.8

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

* CVE-2026-29111 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-29111 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-4105 ( SUSE ): 7.3

CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

* CVE-2026-4105 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2026-4105 ( NVD ): 6.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

Affected Products:

* SUSE Linux Micro 6.1

An update that solves two vulnerabilities and has one fix can now be installed.

##

* https://www.suse.com/security/cve/CVE-2026-29111.html

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:20826-1
Release Date: 2026-03-24T09:38:06Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE privilege escalation access control important systemd

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