CVE-2009-4495: Yaws

Medium severity, CVSS 5.0. EPSS: 9.8% chance of exploitation in the next 30 days.

Yaws 1.85 writes data to a log file without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator.

Affected products

• Yaws Yaws: version 1.85 only

Published 2010-01-13. Last modified 2026-06-16.