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Cisco Patches Critical ISE Vulnerabilities Allowing Remote Code Execution Attacks

ID: e9c6f22c-bdb3-5a77-91a0-7cf084401609

STIX ID: report--e9c6f22c-bdb3-5a77-91a0-7cf084401609

Feed Name: The Cyber Express

Threat Score
78/100

Date Published: 2026-04-20

Date Updated: 2026-05-05

Author: Samiksha Jain

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**Executive summary:** Cisco released security updates for multiple critical vulnerabilities in Identity Services Engine (ISE) and Webex Services (including CVE-2026-20147/20180/20186/20184) that allow remote code execution, root escalation, and SSO user impersonation; affected versions and patch releases are listed, no mitigations aside from patching exist, and Cisco has not observed active exploitation to date.

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