CVE-2006-4981: Symantec Sygate Network Access Control

Medium severity, CVSS 4.6. EPSS: 0.3% chance of exploitation in the next 30 days.

Symantec Sygate NAC allows physically proximate attackers to bypass control methods and join a local network by selecting a forged MAC address associated with an exception rule that (1) permits all non-Windows devices or (2) whitelists certain sets of Organizationally Unique Identifiers (OUIs).

Affected products

• Symantec Sygate Network Access Control: any version

Published 2006-09-26. Last modified 2026-06-16.