CUPS Vulnerability Allows Code Execution with Administrator Rights
Summary
CERT-Bund issued a security advisory regarding a vulnerability in CUPS (Common Unix Printing System) that allows local attackers to execute arbitrary code with administrator privileges. The vulnerability has a CVSS Base Score of 5.2 (medium) and affects multiple operating systems including Linux, UNIX, and Windows. Organizations using CUPS should assess their exposure and apply available patches or workarounds.
What changed
CERT-Bund published a security advisory identifying a vulnerability in CUPS that allows local authenticated attackers to execute arbitrary code with administrator privileges. The advisory affects Open Source CUPS installations across Linux, UNIX, and Windows environments. The vulnerability carries a CVSS Base Score of 5.2 (medium severity) with no remote attack vector. Organizations running CUPS print services face elevated risk of local privilege escalation if untrusted users have system access.
Affected organizations should prioritize patching CUPS installations, implement least-privilege access controls on print spooler services, and monitor for indicators of compromise. Given the administrative-level code execution capability, successful exploitation could allow attackers to gain full system control, making this a significant risk for servers and workstations running the affected software.
What to do next
- Identify all systems running CUPS in your infrastructure and verify the current patch level
- Apply available security updates for CUPS or implement compensating controls to limit local access
- Review system logs for suspicious print spooler activity indicating exploitation attempts
Archived snapshot
Apr 8, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
[WID-SEC-2026-0976] CUPS: Schwachstelle ermöglicht Ausführen von beliebigem Programmcode mit Administratorrechten CVSS Base Score 5.2 (mittel) CVSS Temporal Score 4.9 (mittel) Remoteangriff nein Datum 06.04.2026 Stand 07.04.2026 Mitigation nein
Betroffene Systeme
Betriebssystem
- Linux
- Sonstiges
- UNIX
- Windows
Produktbeschreibung
CUPS (Common Unix Printing System) ist ein Printspooler, der es lokalen und entfernten Benutzern ermöglicht, Druckfunktionen über das Internet Printing Protocol (IPP) zu nutzen.
Produkte
06.04.2026
- Open Source CUPS
Angriff
Angriff
Ein lokaler Angreifer kann eine Schwachstelle in CUPS ausnutzen, um beliebigen Programmcode mit Administratorrechten auszuführen. CVE Informationen Versionshistorie Feedback zum Advisory geben
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