#2
CyberScoop
general
September 17, 2026 at 21:03 UTC
Cisco alerts customers to second actively exploited zero-day in as many days
By Matt Kapko
AI Summary
Cisco issued an emergency alert about a second maximum-severity zero-day in Identity Services Engine within a 24-hour window, underscoring a pattern of active exploitation targeting this product. Security teams running ISE should treat both vulnerabilities as urgent given confirmed in-the-wild exploitation and the product's central role in network access control.
Relevance score: 91.0/100
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