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Critical · 10.0 Known exploited CVE-2025-20337 EUVD-2025-21708GHSA-p9cx-6464-94g4

Cisco ISE API Unauthenticated Remote Code Execution Vulnerability

Published Jul 16, 2025 · Updated Feb 26, 2026 · Assigned by cisco

Description

A vulnerability in a specific API of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to execute arbitrary code on the underlying operating system as root. The attacker does not require any valid credentials to exploit this vulnerability.

This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by submitting a crafted API request. A successful exploit could allow the attacker to obtain root privileges on an affected device.

Affected products

VendorProductAffectedFixed
Cisco Cisco Identity Services Engine Software 3.3.0, 3.3 Patch 2, 3.3 Patch 1, 3.3 Patch 3, 3.4.0, 3.3 Patch 4, 3.4 Patch 1, 3.3 Patch 5, 3.3 Patch 6 —
Cisco Cisco ISE Passive Identity Connector 3.2.0, 3.1.0, 3.3.0, 3.4.0 —

Advisories 2

References