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⚠️ CISA Known Exploited Vulnerability

Active Threat

This vulnerability is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog. Active exploitation has been observed in the wild. This poses significant risk to federal enterprises and should be prioritized for immediate patching.

CVE-2025-20281

Critical CISA KEV
Low Medium High Critical
10.0
CVSS Score
Published: Jun 25, 2025
Last Modified: Oct 28, 2025

Vulnerability 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.

CVSS Metrics

Common Vulnerability Scoring System

Vector String:

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack Vector
N
Attack Complexity
L
Privileges Required
N
User Interaction
N
Scope
C
Confidentiality
H
Integrity
H
Availability
H

Known Affected Software

4 configuration(s) from 1 vendor(s)

identity_services_engine
Version:
3.3.0
CPE:
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch7:*:*:*:*:*:*
identity_services_engine_passive_identity_connector
Version:
3.4.0
CPE:
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:-:*:*:*:*:*:*
identity_services_engine
Version:
3.4.0
CPE:
cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch3:*:*:*:*:*:*
identity_services_engine_passive_identity_connector
Version:
3.3.0
CPE:
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:-:*:*:*:*:*:*
This vulnerability affects 4 software configuration(s). Ensure you patch all affected systems.

Severity Details

10.0
out of 10.0
Critical

CISA KEV Status

Active Exploitation

Listed in CISA's Known Exploited Vulnerabilities catalog

Key Information

Published Date
June 25, 2025