CVE-2025-20337
Cisco ISE API Unauthenticated Remote Code Execution Vulnerability
CVSS Score
10.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-74 |
| Vendor | cisco |
| Product | cisco identity services engine software |
| Ecosystems | |
| Industries | NetworkingTelecommunications |
| Published | Jul 16, 2025 |
| Last Updated | Feb 26, 2026 |
⚠️ Actively Exploited — Act Now
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
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