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Medium severity5.3NVD Advisory· Published Sep 16, 2026· Updated Sep 28, 2026

CVE-2026-76447

CVE-2026-76447

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

44
  • Cisco Systems, Inc./Identity Services Engine Passive Identity Connector19 versions
    cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:*:*:*:*:*:*:*:*+ 18 more
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:*:*:*:*:*:*:*:*range: <3.3.0
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch1:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch10:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch11:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch2:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch3:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch4:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch5:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch6:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch7:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch8:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch9:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:-:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch1:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch2:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch3:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch4:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch5:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch6:*:*:*:*:*:*
  • Cisco Systems, Inc./Identity Services Engine Software23 versions
    cpe:2.3:a:cisco:identity_services_engine:*:*:*:*:*:*:*:*+ 22 more
    • cpe:2.3:a:cisco:identity_services_engine:*:*:*:*:*:*:*:*range: <3.3.0
    • cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch1:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch10:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch11:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch2:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch3:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch4:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch5:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch6:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch7:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch8:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch9:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.4.0:-:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch1:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch2:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch3:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch4:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch5:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch6:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.5.0:-:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.5.0:patch1:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.5.0:patch2:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.5.0:patch3:*:*:*:*:*:*
  • Cisco Systems, Inc./ISEllm-fuzzy
  • Cisco Systems, Inc./ISE-PICllm-fuzzy

Patches

Vulnerability mechanics

References

1

News mentions

1