Unrated severityNVD Advisory· Published Jul 13, 2006· Updated Jun 16, 2026
CVE-2006-3551
CVE-2006-3551
Description
NCP Secure Enterprise Client (aka VPN/PKI client) 8.30 Build 59, and possibly earlier versions, when the Link Firewall and Personal Firewall are both configured to block all inbound and outbound network traffic, allows context-dependent attackers to send inbound UDP traffic with source port 67 and destination port 68, and outbound UDP traffic with source port 68 and destination port 67.
Affected products
2- cpe:2.3:a:ncp_network_communications:secure_client:*:*:*:*:*:*:*:*Range: <=8.30_build_59
- Range: <=8.30 Build 59
Patches
Vulnerability mechanics
References
2News mentions
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