CVE-2025-20337 - CVE House
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Status published Critical CVE-2025-20337

Cisco ISE API Unauthenticated Remote Code Execution Vulnerability

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Cisco Identity Services Engine Software, Cisco ISE Passive Identity Connector
Vulnerable Versions:
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, 3.2.0, 3.1.0

Timeline

Official Publish: July 16th, 2025
Last Modified: February 26th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Weaknesses (CWE)

CWE-74

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1059 Command and Scripting Interpreter
Execution
T1562 Impair Defenses
Defense Evasion
T1213 Data from Information Repositories
Collection