CVE-2026-76447

Summary

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.

Affected Software

VendorProductVersion RangeStatus
CiscoCisco Identity Services Engine Software3.1.0affected
CiscoCisco Identity Services Engine Software3.1.0 p1affected
CiscoCisco Identity Services Engine Software3.1.0 p3affected
CiscoCisco Identity Services Engine Software3.1.0 p2affected
CiscoCisco Identity Services Engine Software3.2.0affected
CiscoCisco Identity Services Engine Software3.1.0 p4affected
CiscoCisco Identity Services Engine Software3.1.0 p5affected
CiscoCisco Identity Services Engine Software3.2.0 p1affected
CiscoCisco Identity Services Engine Software3.1.0 p6affected
CiscoCisco Identity Services Engine Software3.2.0 p2affected
CiscoCisco Identity Services Engine Software3.1.0 p7affected
CiscoCisco Identity Services Engine Software3.3.0affected
CiscoCisco Identity Services Engine Software3.2.0 p3affected
CiscoCisco Identity Services Engine Software3.2.0 p4affected
CiscoCisco Identity Services Engine Software3.1.0 p8affected
CiscoCisco Identity Services Engine Software3.2.0 p5affected
CiscoCisco Identity Services Engine Software3.2.0 p6affected
CiscoCisco Identity Services Engine Software3.1.0 p9affected
CiscoCisco Identity Services Engine Software3.3 Patch 2affected
CiscoCisco Identity Services Engine Software3.3 Patch 1affected
CiscoCisco Identity Services Engine Software3.3 Patch 3affected
CiscoCisco Identity Services Engine Software3.4.0affected
CiscoCisco Identity Services Engine Software3.2.0 p7affected
CiscoCisco Identity Services Engine Software3.3 Patch 4affected
CiscoCisco Identity Services Engine Software3.4 Patch 1affected
CiscoCisco Identity Services Engine Software3.1.0 p10affected
CiscoCisco Identity Services Engine Software3.3 Patch 5affected
CiscoCisco Identity Services Engine Software3.3 Patch 6affected
CiscoCisco Identity Services Engine Software3.4 Patch 2affected
CiscoCisco Identity Services Engine Software3.3 Patch 7affected
CiscoCisco Identity Services Engine Software3.4 Patch 3affected
CiscoCisco Identity Services Engine Software3.5.0affected
CiscoCisco Identity Services Engine Software3.4 Patch 4affected
CiscoCisco Identity Services Engine Software3.3 Patch 8affected
CiscoCisco Identity Services Engine Software3.2 Patch 8affected
CiscoCisco Identity Services Engine Software3.5 Patch 1affected
CiscoCisco Identity Services Engine Software3.3 Patch 9affected
CiscoCisco Identity Services Engine Software3.2 Patch 9affected
CiscoCisco Identity Services Engine Software3.4 Patch 5affected
CiscoCisco Identity Services Engine Software3.5 Patch 3affected
CiscoCisco Identity Services Engine Software3.5 Patch 2affected
CiscoCisco Identity Services Engine Software3.3 Patch 10affected
CiscoCisco Identity Services Engine Software3.3 Patch 11affected
CiscoCisco Identity Services Engine Software3.4 Patch 6affected
CiscoCisco Identity Services Engine Software3.2 Patch 10affected
CiscoCisco Identity Services Engine Software3.1.0 p72affected
CiscoCisco Identity Services Engine Software3.1.0 p11affected
CiscoCisco ISE Passive Identity Connector3.2.0affected
CiscoCisco ISE Passive Identity Connector3.1.0affected
CiscoCisco ISE Passive Identity Connector3.3.0affected
CiscoCisco ISE Passive Identity Connector3.4.0affected
CiscoCisco ISE Passive Identity Connector3.5.0affected

Weaknesses

  • CWE-306: Missing Authentication for Critical Function

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References