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CVE-2026-20237

No fix known EPSS <1%CVSS 9.1

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC), engineering teams have conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20237 are related to improper input validation issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-20.

Published 2026-09-16 · CVE record · OSV

Products: Cisco Identity Services Engine Software, Cisco ISE Passive Identity Connector