Field Notice: FN – 72468 – ASA and Firepower Software: Some Applications Might Cause Traceback and Reload on Cisco Secure Firewall 2100 Series Security Appliances – Software Upgrade Recommended

Problem DescriptionSome versions of Adaptive Security Appliance (ASA) and Firepower software might cause a traceback and reload condition for the Cisco Secure Firewall 2100 Series security appliances. BackgroundA traceback and…

Field Notice: FN – 72466 – Identity Services Engine – Passive ID WMI Provider Fails After Windows Server KB500442 Installation – Configuration Change Recommended

Problem DescriptionCisco Identity Services Engine (ISE) Passive Identity (Passive ID) services that use the Windows Management Instrumentation (WMI) provider will fail after Windows Server KB500442 or later is installed. BackgroundThe…

Field Notice: FN – 72511 – RSA Keys Less Than 2048 Bits Are Not Supported for SSH in Cisco IOS XE Release 17.11.1 and Later – Workaround Provided

Problem Description In releases earlier than Cisco IOS XE Release 17.11.1, RSA keys less than 2048 bits can be used for the SSH server on the device. In Cisco IOS…

Field Notice: FN74005 – Identity Services Engine: Java Heap Size May Significantly Impact System Performance – Software Upgrade Recommended

Problem Description Affected Cisco Identity Services Engine (ISE) releases may have system performance issues such as high memory utilization, high CPU utilization, high latency, and high load average. Background Starting…

Field Notice: FN – 72510 – Cisco IOS XE SW: Weak Cryptographic Algorithms Are Not Allowed by Default for IPsec Configuration in Cisco IOS XE Release 17.11.1 and Later – Configuration Change Recommended

Problem Description In releases earlier than Cisco IOS® XE Release 17.11.1, weak crypto algorithms, including integrity, encryption, and Diffie-Hellman group algorithms, can be configured for IPsec protocol negotiation as well…