CVE-2008-3819: dnsserver in Cisco Application Control Engine Global Site Selector (GSS) before 3.0(1) allows remote attack...

Security readout for executives and security teams

CVE-2008-3819 is a denial-of-service flaw in Cisco ACE Global Site Selector appliances before 3.0(1). A remote attacker could send crafted DNS requests that crash the dnsserver daemon, disrupting DNS-based site-selection service. The cited sources do not show data theft, code execution, or confirmed active exploitation. Exposure is limited to organizations still operating Cisco ACE GSS appliances on software earlier than 3.0(1), especially if DNS service is reachable from untrusted networks. The bundle's affected CPE data is empty, so asset confirmation must rely on inventory and vendor product/version checks. Treat this as a targeted availability risk for legacy DNS traffic-management infrastructure. Prioritize remediation where Cisco GSS still supports production site selection or external DNS responses. It is not supported by the bundle as a data breach or ransomware-enabling issue. Mitigation focus: Upgrade affected Cisco GSS systems to version 3.0(1) or later if vendor-supported.; Review Cisco advisory guidance before applying changes to legacy appliances.; Restrict DNS service exposure to trusted networks where operationally possible..

Prepared

Jun 28, 2026, 11:41 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.