CVE-2003-1003: Cisco Pix Firewall

High severity, CVSS 7.8. EPSS: 1.4% chance of exploitation in the next 30 days.

Cisco PIX firewall 5.x.x, and 6.3.1 and earlier, allows remote attackers to cause a denial of service (crash and reload) via an SNMPv3 message when snmp-server is set.

Affected products

• Cisco Pix Firewall: version 6.2.2_.111 only
• Cisco Pix Firewall Software: version 5.0 only; version 5.1 only; version 5.1(4) only; version 5.1(4.206) only; version 5.2 only; version 5.2(1) only; …

Published 2004-01-05. Last modified 2026-06-16.