Cisco warns of max severity ISE zero-day exploited in attacks

Key Takeaways

• Cisco patched a maximum-severity zero-day vulnerability in Identity Services Engine that attackers are actively exploiting in the wild against unpatched deployments.
• The critical ISE flaw carries the highest CVSS severity rating, reflecting its potential to compromise network access control and authentication infrastructure enterprise-wide.
• Organizations running Cisco ISE should immediately apply available security updates since active exploitation indicates working exploits are already in circulation.