CVE-2025-20337

Cisco Identity Services Engine Software, Cisco ISE Passive Identity Connector

Published 16 Jul 2025 · updated 17 Jun 2026 · Analyzed

10.0 Critical · CVSS 3.1, cisco.com

Exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on 28 Jul 2025, with a remediation deadline of 18 Aug 2025 for US federal agencies.

Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

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.

References

sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-unauth-rce-ZAd2GnJ6 · Vendor Advisory
www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-20337 · US Government Resource