CVE-2012-0356: Cisco Adaptive Security Appliances (ASA) 5500 series devices, and the ASA Services Module (ASASM) in Cisco...

Security readout for executives and security teams

This issue can make certain Cisco firewall platforms reload unexpectedly when multicast routing is enabled. A successful attack could interrupt network security enforcement and connectivity, but the provided sources do not show confirmed active exploitation or a CVSS score. Exposure is most likely in legacy Cisco ASA 5500, ASASM, or FWSM deployments that still run the affected versions and have multicast routing enabled. The provided bundle does not identify default exposure, internet reachability, or specific network placement requirements. Prioritize validation if these legacy Cisco firewall platforms remain in production. A reload on a firewall can cause business-impacting outage, but urgency depends on affected software, multicast routing status, and network exposure. Mitigation focus: Check Cisco advisories for the exact fixed release for each platform branch.; Upgrade affected ASA, ASASM, and FWSM software to the Cisco-listed fixed versions.; Identify whether multicast routing is enabled on affected devices..

Prepared

Jun 24, 2026, 12:52 UTC (UTC+00:00)

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