CVE-2026-76447CWE-306

CVE-2026-76447

Medium · published September 17, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
30.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00376 · 30.3th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-09-17T01:17Z
Affected products (42)
ProductVersionsFixed in
cisco/identity_services_engine_passive_identity_connector< 3.3.03.3.0
cisco/identity_services_engine_passive_identity_connectorall versions—
cisco/identity_services_engine_passive_identity_connectorall versions—
cisco/identity_services_engine_passive_identity_connectorall versions—
cisco/identity_services_engine_passive_identity_connectorall versions—
cisco/identity_services_engine_passive_identity_connectorall versions—
cisco/identity_services_engine_passive_identity_connectorall versions—
cisco/identity_services_engine_passive_identity_connectorall versions—
cisco/identity_services_engine_passive_identity_connectorall versions—
cisco/identity_services_engine_passive_identity_connectorall versions—
cisco/identity_services_engine_passive_identity_connectorall versions—
cisco/identity_services_engine_passive_identity_connectorall versions—
cisco/identity_services_engine_passive_identity_connectorall versions—
cisco/identity_services_engine_passive_identity_connectorall versions—
cisco/identity_services_engine_passive_identity_connectorall versions—
cisco/identity_services_engine_passive_identity_connectorall versions—
cisco/identity_services_engine_passive_identity_connectorall versions—
cisco/identity_services_engine_passive_identity_connectorall versions—
cisco/identity_services_engine_passive_identity_connectorall versions—
cisco/identity_services_engine< 3.3.03.3.0
cisco/identity_services_engineall versions—
cisco/identity_services_engineall versions—
cisco/identity_services_engineall versions—
cisco/identity_services_engineall versions—
cisco/identity_services_engineall versions—
cisco/identity_services_engineall versions—
cisco/identity_services_engineall versions—
cisco/identity_services_engineall versions—
cisco/identity_services_engineall versions—
cisco/identity_services_engineall versions—
cisco/identity_services_engineall versions—
cisco/identity_services_engineall versions—
cisco/identity_services_engineall versions—
cisco/identity_services_engineall versions—
cisco/identity_services_engineall versions—
cisco/identity_services_engineall versions—
cisco/identity_services_engineall versions—
cisco/identity_services_engineall versions—
cisco/identity_services_engineall versions—
cisco/identity_services_engineall versions—
cisco/identity_services_engineall versions—
cisco/identity_services_engineall versions—
References (1)
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multiauth-bypass-sgD2HbL4 · [email protected]
EPSS history
Timeline
  • 18 SEP 04:01Z
    EPSS moved — → 0%
    epss
  • 16 SEP 20:24Z
    Cisco Identity Services Engine Certificate Reload Vulnerability
    cvelistv5