VULNERABILITY INTELLIGENCE
CVE-2006-3551
CVSS score1.2 LOW
EPSS probability0.27%
CISA KEVNot currently listed
Published2006-07-13
Last modified2026-06-16
CVSS vectorAV:L/AC:H/Au:N/C:N/I:P/A:N
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.