CVE-2012-3058: Cisco Adaptive Security Appliances (ASA) 5500 series devices, and the ASA Services Module (ASASM) in Cisco...

Security readout for executives and security teams

This flaw can make affected Cisco ASA firewalls or ASA service modules reload when they process certain IPv6 transit traffic. For a business, the practical risk is firewall interruption and loss of network availability, not data theft based on the provided sources. Exposure is most likely where legacy Cisco ASA or ASASM devices still run the listed vulnerable ASA software trains and handle IPv6 transit traffic. The bundle does not identify other products or supported deployment prerequisites. Treat this as a network availability risk for legacy firewall infrastructure. It is not marked as known exploited, but affected perimeter or core firewall devices can create business disruption if they reload under traffic. Mitigation focus: Inventory Cisco ASA 5500 and ASASM deployments.; Upgrade affected 8.4, 8.5, or 8.6 software to the fixed releases or later.; Check Cisco advisory guidance before applying operational workarounds..

Prepared

Jun 24, 2026, 12:34 UTC (UTC+00:00)

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