Nexus – Interface Error disabled. Reason: DCX-No ACK in 100 PDUs / Cisco Bug ID CSCtq30118
This is the first time I encounter this error on the disabled interface so lets dig in! N5K2# sh int statusEth100/1/31 Node3 dcxNoACKi trunk full...
Cisco AnyConnect Secure Mobility Client Arbitrary Code Execution Vulnerability – cisco-sa-anyconnect-ipc-KfQO9QhK
This bug is not as clear as you would typically see. In the Cisco Advisory for cisco-sa-anyconnect-ipc-KfQO9QhK / CVE-2020-3556 they partially talk about the local...
Cisco IOS and IOS XE Software Cisco Discovery Protocol Denial of Service Vulnerability – CSCvg54267 – CDPwn
Another bug which impacts Cisco OS, OS XE and NX OS. “A vulnerability in the implementation of Cisco Discovery Protocol functionality in Cisco IOS Software...
Cisco Adaptive Security Appliance Web Services Denial of Service Vulnerability – Appliance Crash
Recently, I had couple of my ASAv’s to crash unexpectedly. Turns out its related to the bug CSCvi16029. If you getting similar behavior where your...
ASA Unexpected Crash – DATAPATH Traceback CSCvb30445
If you are getting unexpected crashes/reloads on your ASA and you are leveraging Policy Based Routing (PBR) you may hit Cisco Bug CSCvb30445....