CVE-2000-1187: Netscape Communicator

High severity, CVSS 7.5. EPSS: 2.6% chance of exploitation in the next 30 days.

Buffer overflow in the HTML parser for Netscape 4.75 and earlier allows remote attackers to execute arbitrary commands via a long password value in a form field.

Affected products

• Netscape Communicator: up to and including 4.75
• Netscape Navigator: up to and including 4.75

Published 2001-01-09. Last modified 2026-06-16.