CVE-2026-76447
Cisco Identity Services Engine Certificate Reload Vulnerability
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-306 |
| Vendor | cisco |
| Product | cisco identity services engine software |
| Ecosystems | |
| Industries | NetworkingTelecommunications |
| Published | Sep 16, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Affected Versions
Cisco / Cisco Identity Services Engine Software
3.1.0 3.1.0 p1 3.1.0 p3 3.1.0 p2 3.2.0 3.1.0 p4 3.1.0 p5 3.2.0 p1 3.1.0 p6 3.2.0 p2 3.1.0 p7 3.3.0 3.2.0 p3 3.2.0 p4 3.1.0 p8 3.2.0 p5 3.2.0 p6 3.1.0 p9 3.3 Patch 2 3.3 Patch 1 3.3 Patch 3 3.4.0 3.2.0 p7 3.3 Patch 4 3.4 Patch 1 3.1.0 p10 3.3 Patch 5 3.3 Patch 6 3.4 Patch 2 3.3 Patch 7 3.4 Patch 3 3.5.0 3.4 Patch 4 3.3 Patch 8 3.2 Patch 8 3.5 Patch 1 3.3 Patch 9 3.2 Patch 9 3.4 Patch 5 3.5 Patch 3 3.5 Patch 2 3.3 Patch 10 3.3 Patch 11 3.4 Patch 6 3.2 Patch 10 3.1.0 p72 3.1.0 p11
Cisco / Cisco ISE Passive Identity Connector
3.2.0 3.1.0 3.3.0 3.4.0 3.5.0