CVE-2012-5415: Race condition on Cisco Adaptive Security Appliances (ASA) devices allows remote attackers to cause a denia...

Security readout for executives and security teams

This issue can let a remote attacker disrupt Cisco ASA firewall availability. The public record describes CPU exhaustion or a device reload after multiple connections trigger a race condition. That means affected edge firewalls could stop passing traffic or become unstable, but the provided sources do not list exact affected versions or a confirmed patch. Exposure is limited to Cisco Adaptive Security Appliance devices matching Cisco’s advisory for this CVE. The supplied CVE data does not identify specific ASA versions, configurations, or CPEs, so asset owners must verify applicability against the Cisco Security Notice. Treat this as an availability risk for Cisco ASA-dependent sites. Prioritize confirmation for internet-facing or business-critical firewalls, then follow Cisco guidance. Urgency increases where a single ASA outage would disrupt VPN, branch, or perimeter connectivity. Mitigation focus: Identify Cisco ASA devices in edge and VPN roles.; Check Cisco’s CVE-2012-5415 Security Notice for affected releases.; Apply Cisco-recommended fixed releases or workarounds if applicable..

Prepared

Jun 24, 2026, 11:46 UTC (UTC+00:00)

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