CVE-2010-4691: Unspecified vulnerability on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software bef...

Security readout for executives and security teams

This flaw can let a remote attacker crash affected Cisco ASA 5500 firewalls using multicast traffic. The main business risk is availability: a firewall outage can interrupt connectivity, VPN access, or protected services. The source bundle does not show data theft, code execution, or active exploitation. Exposure is most likely in legacy environments still running Cisco ASA 5500 appliances with ASA software earlier than 8.3(2), especially where multicast traffic can reach the device. Treat as a legacy perimeter availability risk. Prioritize remediation if affected ASA 5500 devices still protect production networks or VPN access. Lower urgency is reasonable if no affected appliances remain or they are isolated from multicast exposure. Mitigation focus: Inventory Cisco ASA 5500 appliances and record ASA software versions.; Upgrade affected systems to vendor-supported fixed software per Cisco guidance.; Limit untrusted multicast traffic reaching ASA devices where operationally feasible..

Prepared

Jun 28, 2026, 01:17 UTC (UTC+00:00)

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