CVE-2009-1573: Branden Robinson Xvfb-Run

Medium severity, CVSS 4.6. EPSS: 0.5% chance of exploitation in the next 30 days.

xvfb-run 1.6.1 in Debian GNU/Linux, Ubuntu, Fedora 10, and possibly other operating systems place the magic cookie (MCOOKIE) on the command line, which allows local users to gain privileges by listing the process and its arguments.

Affected products

• Branden Robinson Xvfb-Run: version 1.6.1 only
• Debian Debian Linux: any version
• Red Hat Fedora: version 10 only
• Ubuntu Linux: any version

Published 2009-05-06. Last modified 2026-06-16.