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Back to active CVEs
Medium ยท CVSS 5.3CVE-2026-76447

Cisco Identity Services Engine Certificate Reload VulnerabilityCVE-2026-76447

Answer in brief

CVE-2026-76447 records a Medium severity (CVSS 5.3) vulnerability in Cisco Identity Services Engine Certificate Reload Vulnerability. The current sources do not mark it as known exploited. The current feed maps Cisco/Cisco Identity Services Engine Software (generic), Cisco/Cisco ISE Passive Identity Connector (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 16, 2026Updated Sep 28, 2026Source checked Nov 1, 2026First seen by HOL Sep 16, 2026Material review Sep 28, 2026
Upstream Advisory

Key facts

Risk
Medium ยท CVSS 5.3
Exploitation
Not marked as known exploited
Affected software
44 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Cisco/Cisco Identity Services Engine Software (generic), Cisco/Cisco ISE Passive Identity Connector (generic). Check affected ranges and fixed versions before updating.

Affected products and reported versions
ProductAffected versionsFixed versions
cpe:2.3:a:cisco:identity_services_engine:*:*:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch1:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch10:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch11:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch2:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch3:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch4:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch5:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch6:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch7:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch8:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch9:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine:3.4.0:-:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch1:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch2:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch3:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch4:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch5:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch6:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine:3.5.0:-:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine:3.5.0:patch1:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine:3.5.0:patch2:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine:3.5.0:patch3:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:*:*:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch1:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch10:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch11:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch2:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch3:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch4:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch5:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch6:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch7:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch8:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch9:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:-:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch1:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch2:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch3:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch4:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch5:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch6:*:*:*:*:*:*Not reportedNot reported
Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Cisco/Cisco Identity Services Engine Softwaregeneric3.1.0 || 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 p11Not reported
Cisco/Cisco ISE Passive Identity Connectorgeneric3.2.0 || 3.1.0 || 3.3.0 || 3.4.0 || 3.5.0Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Cisco/Cisco Identity Services Engine Software, Cisco/Cisco ISE Passive Identity Connector.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Sep 16, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 28, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 16, 2026

Sources and claim methodology

  • Source referencesec.cloudapps.cisco.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-306
Source
CVE List V5
Source checked
Nov 1, 2026
References
1 linked source
Open source record