Switch
Cisco warns of critical flaws allowing Nexus switch takeover
Cisco released security advisories for five critical vulnerabilities in its NX-OS data center network operating system that could be exploited to run arbitrary code with root privileges on Nexus switches. If remote code execution cannot be achieved, an attacker could exploit the vulnerabilities to crash processes and force the vulnerable device to reload, resulting in […]
Cisco switches hit by reboot loops due to DNS client bug
Multiple Cisco switch models are suddenly experiencing reboot loops after logging fatal DNS client errors, according to reports seen by GeekFeed. Starting at approximately 2 AM, what appears to be a firmware bug in the switches’ internal DNS client service began treating DNS lookup failures as fatal errors, causing affected devices to reboot repeatedly. Switches […]
CISA: Network switch RCE flaw impacts critical infrastructure
U.S. cybersecurity agency CISA is warning about two critical vulnerabilities that allow authentication bypass and remote code execution in Optigo Networks ONS-S8 Aggregation Switch products used in critical infrastructure. The flaws concern weak authentication problems, allowing bypassing of password requirements, and user input validation issues potentially leading to remote code execution, arbitrary file uploads, and directory […]