Risk Scores
CVSS v3.1
6.699999809265137
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian | systemd |
Timeline
- Apr 16, 2026 CVE Published
=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.3732 systemd security update 16 April 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: systemd Publisher: Debian Operating System: Debian GNU/Linux Resolution: Patch/Upgrade CVE Names: CVE-2026-40226 CVE-2026-4105 CVE-2026-29111 CVE-2026-40225 Original Bulletin: https://lists.debian.org/debian-lts-announce/2026/04/msg00011.html Comment: CVSS (Max): 6.7 CVE-2026-4105 (CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H) CVSS Source: GitHub, MITRE, [Red Hat] Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H EPSS (Max): 0.0% (5th) CVE-2026-4105 2026-04-14 - --------------------------BEGIN INCLUDED TEXT-------------------- - ------------------------------------------------------------------------- Debian LTS Advisory DLA-4533-1 debian-lts@lists.debian.org https://www.debian.org/lts/security/ Arnaud Rebillout April 15, 2026 https://wiki.debian.org/LTS - ------------------------------------------------------------------------- Package : systemd Version : 247.3-7+deb11u8 CVE ID : CVE-2026-4105 CVE-2026-29111 CVE-2026-40225 CVE-2026-40226 Debian Bug : The following vulnerabilities have been discovered systemd: CVE-2026-4105 The systemd-machined service contains an Improper Access Control vulnerability due to insufficient validation of the class parameter in the RegisterMachine D-Bus (Desktop Bus) method. A local unprivileged user can exploit this by attempting to register a machine with a specific class value, which may leave behind a usable, attacker-controlled machine object. This allows the attacker to invoke methods on the privileged object, leading to the execution of arbitrary commands with root privileges on the host system. CVE-2026-29111 When an unprivileged IPC API call is made with spurious data, a stack overwrite occurs, with the attacker controlled content. CVE-2026-40225 udev: local root execution can occur via malicious hardware devices and unsanitized kernel output. CVE-2026-40226 nspawn: an escape-to-host action can occur via a crafted optional config file. For Debian 11 bullseye, these problems have been fixed in version 247.3-7+deb11u8. We recommend that you upgrade your systemd packages. For the detailed security status of systemd please refer to its security tracker page at: https://security-tracker.debian.org/tracker/systemd Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AUSCERT's members. As AUSCERT did not write the document quoted above, AUSCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AUSCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://portal.auscert.org.au/bulletins/ =========================================================================== AUSCERT The University of Queensland, Brisbane QLD 4072 Australia e: auscert@auscert.org.au t: +61 (0)7 3365 4417 Allies in Cyber Security ===========================================================================
| Vendor | Product | Versions |
|---|---|---|
| Debian | systemd |