CVE-2025-20337
Cisco Identity Services Engine Injection Vulnerability
Cisco Identity Services EngineIdentity & access
CVSS
10.0CriticalExploit odds (EPSS)74.5%Chance of exploitation activity in the next 30 days, higher than 99% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
CISA required actionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. CISA KEV
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Timeline
Description
Cisco Identity Services Engine contains an injection vulnerability in a specific API of Cisco ISE and Cisco ISE-PIC due to insufficient validation of user-supplied input allowing an attacker to exploit this vulnerability by submitting a crafted API request. Successful exploitation could allow an attacker to perform remote code execution and obtaining root privileges on an affected device.
Text from CVE List
Affected versions 13
- Cisco Identity Services Engine Softwareaffected: 3.3.0CVE List
- Cisco Identity Services Engine Softwareaffected: 3.3 Patch 2CVE List
- Cisco Identity Services Engine Softwareaffected: 3.3 Patch 1CVE List
- Cisco Identity Services Engine Softwareaffected: 3.3 Patch 3CVE List
- Cisco Identity Services Engine Softwareaffected: 3.4.0CVE List
- Cisco Identity Services Engine Softwareaffected: 3.3 Patch 4CVE List
- Cisco Identity Services Engine Softwareaffected: 3.4 Patch 1CVE List
- Cisco Identity Services Engine Softwareaffected: 3.3 Patch 5CVE List
- Cisco Identity Services Engine Softwareaffected: 3.3 Patch 6CVE List
- Cisco ISE Passive Identity Connectoraffected: 3.2.0CVE List
- Cisco ISE Passive Identity Connectoraffected: 3.1.0CVE List
- Cisco ISE Passive Identity Connectoraffected: 3.3.0CVE List
- Cisco ISE Passive Identity Connectoraffected: 3.4.0CVE List