CVE-2026-76447
Medium
Description
A vulnerability in the Online Certificate Status Protocol (OCSP) responder of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to cause an administrative reload of the OCSP responder certificate and key material. This vulnerability is due to missing authentication on a function of the OCSP responder. An attacker could exploit this vulnerability by sending a crafted request to an affected device. A successful exploit could allow the attacker to cause the OCSP responder to reload certificate and key material on demand.
SeverityMedium
CVSS5.3
Exploit probability—
Product
Cisco Identity Services Engine Passive Identity Connector
PublishedSep 16, 2026
First seenSep 16, 2026
Weakness typeCWE-306Missing authentication for critical function
How to fix
Update
- cisco identity_services_engine_passive_identity_connector3.3.0 or later
- cisco identity_services_engine3.3.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco identity_services_engine_passive_identity_connector | v < 3.3.0, 3.3.0, 3.4.0 | 3.3.0 |
| cisco identity_services_engine | v < 3.3.0, 3.3.0, 3.4.0, 3.5.0 | 3.3.0 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.