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CVE-2026-20307

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CVSS

9.1

Reports

3

First seen

Sep 17, 2026

Last seen

Oct 1, 2026

Affected product

Cisco Identity Services Engine (ISE) and ISE Passive Identity Connector (ISE-PIC)

Recent reports

Cisco ISE and ISE-PIC Multiple High-Risk Vulnerabilities (CVE-2026-20130, CVE-2026-20192, CVE-2026-20307, CVE-2026-76423, CVE-2026-76460)

NICS TaiwanOct 1, 2026 Critical

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

Bleeping ComputerSep 17, 2026 Critical

Cisco Warns of Maximum-Severity ISE Auth Bypass (CVE-2026-76460) Under Active Exploitation

The Hacker NewsSep 17, 2026

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