← Back

Wire · technology

Cisco Warns of Active Exploitation of Critical ISE Flaw

Published

17 September 2026

Topic

technology

◆ Sectors

Cybersecurity

◆ Geography

United States

◆ Source

Read at infosecurity-magazine.com →

◆ Verified

Fusion42 · 17 September 2026 · Fusion42 review

Cisco has disclosed active exploitation of a critical vulnerability in its Identity Services Engine (ISE) that allows attackers to bypass web management interfaces and gain root command execution. Customers and US Federal agencies are urged to apply urgent patches as no full workaround exists, with network monitoring also recommended to detect exploitation signs.

This Wire brief sits within Fusion42's coverage of Cybersecurity, and 3 sources have reported it.

◆ ◆ The Wire takeaway

US agencies now must patch Cisco ISE immediately, forcing founders in network security to prioritise rapid responses and client advisories. Your window to protect clients and differentiate your security posture just narrowed sharply.

◆ Coverage

3 sources · 17 Sep 2026

◆ Related on Wire

◆ Topics

Cybersecurityciscoisesecurity-flawvulnerabilitycve-2026-76460cisa