[UPDATE] [mittel] systemd: Mehrere Schwachstellen

mediumCVE-2026-4105 CVE-2026-40226

Ein Angreifer kann mehrere Schwachstellen in systemd ausnutzen, um seine Privilegien zu erhöhen und um Sicherheitsvorkehrungen zu umgehen.

CSIRTS triage

vendor: systemd product: systemd Privilege escalation Authentication bypass

What: An attacker can exploit multiple vulnerabilities in systemd to escalate privileges and bypass security measures.
Who is affected: Deployments of systemd in affected versions.
Urgency: Remediation is important as it could lead to privilege escalation and security bypass.
Action: Update to the latest version of systemd.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: medium
Published: 2026-09-14
Exploitation: Not in CISA KEV at last sync

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0720

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-41050.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-402260.07% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 0% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-4105	coverage & exploitation status	NVD · CVE.org
CVE-2026-40226	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

mediumCVE-2026-4105: Systemd: systemd: privilege escalation via improper access control in registermachine d-bus met…msrc

Recent advisories for systemd

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

medium[UPDATE] [mittel] systemd: Mehrere Schwachstellencert-bund · 2026-09-14
medium[UPDATE] [mittel] systemd: Mehrere Schwachstellencert-bund · 2026-09-14
mediumCVE-2026-15059: systemd-oomd: unprivileged users can terminate arbitrary processesmsrc · 2026-08-11
mediumCVE-2026-16742: systemd-homed contains a local privilege escalation bug via arbitrary system group addition to…nvd · 2026-08-10
mediumCVE-2026-15060: When systemd-machined >= v259 (or v258 with a custom `polkit` policy that allows `register-mac…nvd · 2026-08-10
mediumCVE-2026-15059: Local unprivileged users can terminate arbitrary local processes via a systemd-oomd IPC API du…nvd · 2026-08-10