CVE-2003-0069: Putty

High severity, CVSS 7.5. EPSS: 2.2% chance of exploitation in the next 30 days.

The PuTTY terminal emulator 0.53 allows attackers to modify the window title via a certain character escape sequence and then insert it back to the command line in the user's terminal, e.g. when the user views a file containing the malicious sequence, which could allow the attacker to execute arbitrary commands.

Affected products

• Putty Putty: version 0.53 only

Published 2003-03-18. Last modified 2026-06-16.