Cisco is warning customers to update its networking software immediately, flagging four critical security vulnerabilities affecting SD-WAN, DNA, and the Smart Software Manager Satellite.

Cisco says it will not release software update for critical 0-day in EOL VPN routers Cisco said there are no workarounds for the vulnerability.

Cisco has urged its customers to upgrade their software after disclosing that state-sponsored hackers have compromised some of its security devices. In a blog post, the company said hackers ...