CVE-2011-0396: Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 8.0 before 8.0(5.23), 8.1 before...

Security readout for executives and security teams

This flaw affects Cisco ASA 5500 firewalls running specific old ASA 8.0, 8.1, 8.2, or 8.3 releases when a Certificate Authority is configured. A remote attacker could read arbitrary files, which may expose sensitive firewall data. The bundle does not provide CVSS scoring or confirmed exploitation. Exposure is likely limited to Cisco ASA 5500 Series devices still running affected 8.x software with CA configured. Internet-facing firewalls, VPN gateways, and remote-access edge devices would carry higher business risk if unpatched. Prioritize if any affected ASA 5500 remains in production, especially at the network edge. Arbitrary file read on a firewall can expose sensitive configuration or operational data, but urgency depends on confirming affected versions and CA configuration. Mitigation focus: Inventory Cisco ASA 5500 devices and record ASA software versions.; Upgrade affected releases to the fixed Cisco versions or later.; Review whether CA configuration is required on exposed ASA devices..

Prepared

Jun 24, 2026, 13:28 UTC (UTC+00:00)

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