Denial of Service Vulnerability in Cisco VPN Client Software
CVE-2002-1104

Currently unrated

Key Information:

Vendor: Cisco
Status: Vpn Client
Vendor: CVE Published:; 4 October 2002

What is CVE-2002-1104?

Cisco VPN Client software versions 2.x.x and earlier than 3.0.5 are susceptible to an exploit that enables remote attackers to induce a denial of service condition. This is achieved by sending specially crafted TCP packets utilizing source and destination ports set to 137 (NETBIOS). As a result, the software may crash, interrupting service and potentially affecting users relying on secure VPN connections.

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