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Back to active CVEs
Critical ยท CVSS 10.0CVE-2026-20130

Cisco Identity Services Engine Hardening Release - Improper Neutralization VulnerabilitiesCVE-2026-20130

Answer in brief

CVE-2026-20130 records a Critical severity (CVSS 10.0) vulnerability in Cisco Identity Services Engine Hardening Release - Improper Neutralization Vulnerabilities. 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
Critical ยท CVSS 10.0
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 10.0. 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

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC), engineering teams have conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20130 are related to improper neutralization of special elements issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-74.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • WAVLINK WL-WN530BE1-A protocol.csp con_check_read_finish command injectionAlso CWE-74

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-74
Source
CVE List V5
Source checked
Nov 1, 2026
References
1 linked source
Open source record