CVE-2026-76447
Last modified
CVE-2026-76447 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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. EPSS estimates a 0.38% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Cisco | Identity Services Engine Passive Identity Connector | < 3.3.0 | — |
| Cisco | Identity Services Engine Passive Identity Connector | 3.3.0 | Patch1 |
| Cisco | Identity Services Engine Passive Identity Connector | 3.4.0 | — |
| Cisco | Identity Services Engine | < 3.3.0 | — |
| Cisco | Identity Services Engine | 3.3.0 | Patch1 |
| Cisco | Identity Services Engine | 3.4.0 | — |
| Cisco | Identity Services Engine | 3.5.0 | — |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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