CVE-2026-20195
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
71/100
Published: 2026-05-06
Modified: 2026-10-26
First seen: 2026-10-29
Status: active
Attack Surface
Network
Low Complexity
No Auth
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
None
S:
Unchanged
C:
Low
I:
None
A:
None
Description
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.
Weakness Classification (1)
Affected Software (21)
| Vendor | Product | Version |
|---|---|---|
| cisco | identity_services_engine | < 3.2.0 |
| cisco | identity_services_engine | 3.3.0 |
| cisco | identity_services_engine | 3.3.0 |
| cisco | identity_services_engine | 3.3.0 |
| cisco | identity_services_engine | 3.3.0 |
| cisco | identity_services_engine | 3.3.0 |
| cisco | identity_services_engine | 3.3.0 |
| cisco | identity_services_engine | 3.3.0 |
| cisco | identity_services_engine | 3.3.0 |
| cisco | identity_services_engine | 3.3.0 |
| cisco | identity_services_engine | 3.3.0 |
| cisco | identity_services_engine | 3.3.0 |
| cisco | identity_services_engine | 3.4.0 |
| cisco | identity_services_engine | 3.4.0 |
| cisco | identity_services_engine | 3.4.0 |
| cisco | identity_services_engine | 3.4.0 |
| cisco | identity_services_engine | 3.4.0 |
| cisco | identity_services_engine | 3.4.0 |
| cisco | identity_services_engine | 3.5.0 |
| cisco | identity_services_engine | 3.5.0 |
| cisco | identity_services_engine | 3.5.0 |
References & Advisories (1)
Vendor Advisory