CVEDB API

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-20195

A vulnerability in an identity management API endpoint of Cisco ISE could allow an unauthenticated, remote attacker to enumerate valid user accounts on an affected device. This vulnerability exists because error messages are observed when the affected API endpoint is called. An attacker could exploit this vulnerability by sending a series of crafted requests to the affected endpoint and analyzing the differentiated responses. A successful exploit could allow the attacker to compile a list of valid usernames on an affected system.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.003

EPSS Ranking 19.3%

CVSS Severity

CVSS v3 Score 5.3

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-unauth-bypass-uxjRXGpb

Products affected by CVE-2026-20195

Cisco » Identity Services Engine » Version: N/A

cpe:2.3:a:cisco:identity_services_engine:-
Cisco » Identity Services Engine » Version: 002.002(000.916)

cpe:2.3:a:cisco:identity_services_engine:002.002(000.916)
Cisco » Identity Services Engine » Version: 002.003(000.906)

cpe:2.3:a:cisco:identity_services_engine:002.003(000.906)
Cisco » Identity Services Engine » Version: 002.004(000.911)

cpe:2.3:a:cisco:identity_services_engine:002.004(000.911)
Cisco » Identity Services Engine » Version: 002.004(000.914)

cpe:2.3:a:cisco:identity_services_engine:002.004(000.914)
Cisco » Identity Services Engine » Version: 002.006(000.156)

cpe:2.3:a:cisco:identity_services_engine:002.006(000.156)
Cisco » Identity Services Engine » Version: 002.006(000.902)

cpe:2.3:a:cisco:identity_services_engine:002.006(000.902)
Cisco » Identity Services Engine » Version: 002.007(000.356)

cpe:2.3:a:cisco:identity_services_engine:002.007(000.356)
Cisco » Identity Services Engine » Version: 003.000(000.458)

cpe:2.3:a:cisco:identity_services_engine:003.000(000.458)
Cisco » Identity Services Engine » Version: 003.001(000.518)

cpe:2.3:a:cisco:identity_services_engine:003.001(000.518)
Cisco » Identity Services Engine » Version: 003.002(000.116)

cpe:2.3:a:cisco:identity_services_engine:003.002(000.116)
Cisco » Identity Services Engine » Version: 1.0

cpe:2.3:a:cisco:identity_services_engine:1.0
Cisco » Identity Services Engine » Version: 1.0.4

cpe:2.3:a:cisco:identity_services_engine:1.0.4
Cisco » Identity Services Engine » Version: 1.1

cpe:2.3:a:cisco:identity_services_engine:1.1
Cisco » Identity Services Engine » Version: 1.1.1

cpe:2.3:a:cisco:identity_services_engine:1.1.1
Cisco » Identity Services Engine » Version: 1.1.2

cpe:2.3:a:cisco:identity_services_engine:1.1.2
Cisco » Identity Services Engine » Version: 1.1.3

cpe:2.3:a:cisco:identity_services_engine:1.1.3
Cisco » Identity Services Engine » Version: 1.1.4

cpe:2.3:a:cisco:identity_services_engine:1.1.4
Cisco » Identity Services Engine » Version: 1.2

cpe:2.3:a:cisco:identity_services_engine:1.2
Cisco » Identity Services Engine » Version: 1.2(1.199)

cpe:2.3:a:cisco:identity_services_engine:1.2(1.199)
Cisco » Identity Services Engine » Version: 1.2.1

cpe:2.3:a:cisco:identity_services_engine:1.2.1
Cisco » Identity Services Engine » Version: 1.3

cpe:2.3:a:cisco:identity_services_engine:1.3
Cisco » Identity Services Engine » Version: 1.3(0.722)

cpe:2.3:a:cisco:identity_services_engine:1.3(0.722)
Cisco » Identity Services Engine » Version: 1.3(0.876)

cpe:2.3:a:cisco:identity_services_engine:1.3(0.876)
Cisco » Identity Services Engine » Version: 1.3(0.909)

cpe:2.3:a:cisco:identity_services_engine:1.3(0.909)
Cisco » Identity Services Engine » Version: 1.3(106.146)

cpe:2.3:a:cisco:identity_services_engine:1.3(106.146)
Cisco » Identity Services Engine » Version: 1.3(120.135)

cpe:2.3:a:cisco:identity_services_engine:1.3(120.135)
Cisco » Identity Services Engine » Version: 1.4

cpe:2.3:a:cisco:identity_services_engine:1.4
Cisco » Identity Services Engine » Version: 1.4(0.109)

cpe:2.3:a:cisco:identity_services_engine:1.4(0.109)
Cisco » Identity Services Engine » Version: 1.4(0.181)

cpe:2.3:a:cisco:identity_services_engine:1.4(0.181)
Cisco » Identity Services Engine » Version: 1.4(0.253)

cpe:2.3:a:cisco:identity_services_engine:1.4(0.253)
Cisco » Identity Services Engine » Version: 1.4(0.908)

cpe:2.3:a:cisco:identity_services_engine:1.4(0.908)
Cisco » Identity Services Engine » Version: 2.0

cpe:2.3:a:cisco:identity_services_engine:2.0
Cisco » Identity Services Engine » Version: 2.0(0.147)

cpe:2.3:a:cisco:identity_services_engine:2.0(0.147)
Cisco » Identity Services Engine » Version: 2.0(0.169)

cpe:2.3:a:cisco:identity_services_engine:2.0(0.169)
Cisco » Identity Services Engine » Version: 2.0(0.222)

cpe:2.3:a:cisco:identity_services_engine:2.0(0.222)
Cisco » Identity Services Engine » Version: 2.0(0.234)

cpe:2.3:a:cisco:identity_services_engine:2.0(0.234)
Cisco » Identity Services Engine » Version: 2.0(0.249)

cpe:2.3:a:cisco:identity_services_engine:2.0(0.249)
Cisco » Identity Services Engine » Version: 2.0(0.306)

cpe:2.3:a:cisco:identity_services_engine:2.0(0.306)
Cisco » Identity Services Engine » Version: 2.0(1.130)

cpe:2.3:a:cisco:identity_services_engine:2.0(1.130)
Cisco » Identity Services Engine » Version: 2.0.1

cpe:2.3:a:cisco:identity_services_engine:2.0.1
Cisco » Identity Services Engine » Version: 2.1

cpe:2.3:a:cisco:identity_services_engine:2.1
Cisco » Identity Services Engine » Version: 2.1(0.474)

cpe:2.3:a:cisco:identity_services_engine:2.1(0.474)
Cisco » Identity Services Engine » Version: 2.1(0.476)

cpe:2.3:a:cisco:identity_services_engine:2.1(0.476)
Cisco » Identity Services Engine » Version: 2.1(0.800)

cpe:2.3:a:cisco:identity_services_engine:2.1(0.800)
Cisco » Identity Services Engine » Version: 2.1(0.904)

cpe:2.3:a:cisco:identity_services_engine:2.1(0.904)
Cisco » Identity Services Engine » Version: 2.1(0.907)

cpe:2.3:a:cisco:identity_services_engine:2.1(0.907)
Cisco » Identity Services Engine » Version: 2.1(102.101)

cpe:2.3:a:cisco:identity_services_engine:2.1(102.101)
Cisco » Identity Services Engine » Version: 2.1(102.103)

cpe:2.3:a:cisco:identity_services_engine:2.1(102.103)
Cisco » Identity Services Engine » Version: 2.1.0

cpe:2.3:a:cisco:identity_services_engine:2.1.0
Cisco » Identity Services Engine » Version: 2.1_base

cpe:2.3:a:cisco:identity_services_engine:2.1_base
Cisco » Identity Services Engine » Version: 2.2

cpe:2.3:a:cisco:identity_services_engine:2.2
Cisco » Identity Services Engine » Version: 2.2(0.283)

cpe:2.3:a:cisco:identity_services_engine:2.2(0.283)
Cisco » Identity Services Engine » Version: 2.2(0.470)

cpe:2.3:a:cisco:identity_services_engine:2.2(0.470)
Cisco » Identity Services Engine » Version: 2.2(0.471)

cpe:2.3:a:cisco:identity_services_engine:2.2(0.471)
Cisco » Identity Services Engine » Version: 2.2(0.903)

cpe:2.3:a:cisco:identity_services_engine:2.2(0.903)
Cisco » Identity Services Engine » Version: 2.2(0.909)

cpe:2.3:a:cisco:identity_services_engine:2.2(0.909)
Cisco » Identity Services Engine » Version: 2.2(0.910)

cpe:2.3:a:cisco:identity_services_engine:2.2(0.910)
Cisco » Identity Services Engine » Version: 2.2(1.145)

cpe:2.3:a:cisco:identity_services_engine:2.2(1.145)
Cisco » Identity Services Engine » Version: 2.2.0

cpe:2.3:a:cisco:identity_services_engine:2.2.0
Cisco » Identity Services Engine » Version: 2.2.0.470

cpe:2.3:a:cisco:identity_services_engine:2.2.0.470
Cisco » Identity Services Engine » Version: 2.3

cpe:2.3:a:cisco:identity_services_engine:2.3
Cisco » Identity Services Engine » Version: 2.3(0.151)

cpe:2.3:a:cisco:identity_services_engine:2.3(0.151)
Cisco » Identity Services Engine » Version: 2.3(0.298)

cpe:2.3:a:cisco:identity_services_engine:2.3(0.298)
Cisco » Identity Services Engine » Version: 2.3(0.904)

cpe:2.3:a:cisco:identity_services_engine:2.3(0.904)
Cisco » Identity Services Engine » Version: 2.3(0.905)

cpe:2.3:a:cisco:identity_services_engine:2.3(0.905)
Cisco » Identity Services Engine » Version: 2.3.0

cpe:2.3:a:cisco:identity_services_engine:2.3.0
Cisco » Identity Services Engine » Version: 2.3.0.298

cpe:2.3:a:cisco:identity_services_engine:2.3.0.298
Cisco » Identity Services Engine » Version: 2.4

cpe:2.3:a:cisco:identity_services_engine:2.4
Cisco » Identity Services Engine » Version: 2.4(0.192)

cpe:2.3:a:cisco:identity_services_engine:2.4(0.192)
Cisco » Identity Services Engine » Version: 2.4(0.247)

cpe:2.3:a:cisco:identity_services_engine:2.4(0.247)
Cisco » Identity Services Engine » Version: 2.4(0.357)

cpe:2.3:a:cisco:identity_services_engine:2.4(0.357)
Cisco » Identity Services Engine » Version: 2.4(0.901)

cpe:2.3:a:cisco:identity_services_engine:2.4(0.901)
Cisco » Identity Services Engine » Version: 2.4(0.901.1)

cpe:2.3:a:cisco:identity_services_engine:2.4(0.901.1)
Cisco » Identity Services Engine » Version: 2.4(0.902)

cpe:2.3:a:cisco:identity_services_engine:2.4(0.902)
Cisco » Identity Services Engine » Version: 2.4(0.903)

cpe:2.3:a:cisco:identity_services_engine:2.4(0.903)
Cisco » Identity Services Engine » Version: 2.4(0.904)

cpe:2.3:a:cisco:identity_services_engine:2.4(0.904)
Cisco » Identity Services Engine » Version: 2.4(100.159)

cpe:2.3:a:cisco:identity_services_engine:2.4(100.159)
Cisco » Identity Services Engine » Version: 2.4.0

cpe:2.3:a:cisco:identity_services_engine:2.4.0
Cisco » Identity Services Engine » Version: 2.4.0.357

cpe:2.3:a:cisco:identity_services_engine:2.4.0.357
Cisco » Identity Services Engine » Version: 2.5

cpe:2.3:a:cisco:identity_services_engine:2.5
Cisco » Identity Services Engine » Version: 2.5(0.1)

cpe:2.3:a:cisco:identity_services_engine:2.5(0.1)
Cisco » Identity Services Engine » Version: 2.5(0.225)

cpe:2.3:a:cisco:identity_services_engine:2.5(0.225)
Cisco » Identity Services Engine » Version: 2.5(0.353)

cpe:2.3:a:cisco:identity_services_engine:2.5(0.353)
Cisco » Identity Services Engine » Version: 2.6

cpe:2.3:a:cisco:identity_services_engine:2.6
Cisco » Identity Services Engine » Version: 2.6(0.156)

cpe:2.3:a:cisco:identity_services_engine:2.6(0.156)
Cisco » Identity Services Engine » Version: 2.6(0.999)

cpe:2.3:a:cisco:identity_services_engine:2.6(0.999)
Cisco » Identity Services Engine » Version: 2.6.0

cpe:2.3:a:cisco:identity_services_engine:2.6.0
Cisco » Identity Services Engine » Version: 2.6.0.156

cpe:2.3:a:cisco:identity_services_engine:2.6.0.156
Cisco » Identity Services Engine » Version: 2.7

cpe:2.3:a:cisco:identity_services_engine:2.7
Cisco » Identity Services Engine » Version: 2.7(0.207)

cpe:2.3:a:cisco:identity_services_engine:2.7(0.207)
Cisco » Identity Services Engine » Version: 2.7(0.356)

cpe:2.3:a:cisco:identity_services_engine:2.7(0.356)
Cisco » Identity Services Engine » Version: 2.7(0.903)

cpe:2.3:a:cisco:identity_services_engine:2.7(0.903)
Cisco » Identity Services Engine » Version: 2.7.0

cpe:2.3:a:cisco:identity_services_engine:2.7.0
Cisco » Identity Services Engine » Version: 2.7.0.356

cpe:2.3:a:cisco:identity_services_engine:2.7.0.356
Cisco » Identity Services Engine » Version: 3.0(0.458)

cpe:2.3:a:cisco:identity_services_engine:3.0(0.458)
Cisco » Identity Services Engine » Version: 3.0.0

cpe:2.3:a:cisco:identity_services_engine:3.0.0
Cisco » Identity Services Engine » Version: 3.1

cpe:2.3:a:cisco:identity_services_engine:3.1
Cisco » Identity Services Engine » Version: 3.1(0.440)

cpe:2.3:a:cisco:identity_services_engine:3.1(0.440)
Cisco » Identity Services Engine » Version: 3.1(0.518)

cpe:2.3:a:cisco:identity_services_engine:3.1(0.518)
Cisco » Identity Services Engine » Version: 3.1.0

cpe:2.3:a:cisco:identity_services_engine:3.1.0
Cisco » Identity Services Engine » Version: 3.2

cpe:2.3:a:cisco:identity_services_engine:3.2
Cisco » Identity Services Engine » Version: 3.2(0.149)

cpe:2.3:a:cisco:identity_services_engine:3.2(0.149)
Cisco » Identity Services Engine » Version: 3.2.0

cpe:2.3:a:cisco:identity_services_engine:3.2.0
Cisco » Identity Services Engine » Version: 3.3.0

cpe:2.3:a:cisco:identity_services_engine:3.3.0
Cisco » Identity Services Engine » Version: 3.4.0

cpe:2.3:a:cisco:identity_services_engine:3.4.0
Cisco » Identity Services Engine » Version: 3.5.0

cpe:2.3:a:cisco:identity_services_engine:3.5.0

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-20195

Products

Pricing

Contact Us