Critical · published September 17, 2026
CVSS calls it critical at 10.0. It is confirmed in active exploitation. It sits in the 96.6th percentile for exploit probability.
A vulnerability in an API of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to bypass authentication.
This vulnerability is due to insufficient authentication control on an API endpoint. An attacker could exploit this vulnerability by sending a crafted request to an affected API endpoint. A successful exploit could allow the attacker to gain unauthorized access to the affected device by bypassing the web-based management interface.
| Product | Versions | Fixed in |
|---|---|---|
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |
| cisco/identity_services_engine_passive_identity_connector | all versions | — |