CVE-2006-4098: Cisco Secure Access Control Server

High severity, CVSS 10.0. EPSS: 12.9% chance of exploitation in the next 30 days.

Stack-based buffer overflow in the CSRadius service in Cisco Secure Access Control Server (ACS) for Windows before 4.1 and ACS Solution Engine before 4.1 allows remote attackers to execute arbitrary code via a crafted RADIUS Accounting-Request packet.

Affected products

• Cisco Secure Access Control Server: version 3.0 only; version 3.1 only; version 3.2 only; version 3.2(1) only; version 3.2(1.20) only; version 3.2(2) only; …

Published 2006-12-31. Last modified 2026-06-16.