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Vulnerability Intelligence Report
Cisco Identity Services Engine Hardening Release - Insuffiencently Protected Credential Vulnerabilities

CVE-2026-20234

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-2026-20234 are related to insufficiently protected credentials issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-522.

No Active Exploit Signals
CVSS Base Score
9.9
CRITICAL
Exploitability:3.2
Impact Score:6.1
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
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Weaponization
—
SSVC Action
—

Weaknesses (CWE)

CWE-522 ↗Insufficiently Protected Credentials

Affected Products & Versions

Vendor Product Affected Versions
Cisco Cisco Identity Services Engine Software 3.1.0 (affected), 3.1.0 p1 (affected), 3.1.0 p3 (affected), 3.1.0 p2 (affected), 3.2.0 (affected), 3.1.0 p4 (affected), 3.1.0 p5 (affected), 3.2.0 p1 (affected), 3.1.0 p6 (affected), 3.2.0 p2 (affected), 3.1.0 p7 (affected), 3.3.0 (affected), 3.2.0 p3 (affected), 3.2.0 p4 (affected), 3.1.0 p8 (affected), 3.2.0 p5 (affected), 3.2.0 p6 (affected), 3.1.0 p9 (affected), 3.3 Patch 2 (affected), 3.3 Patch 1 (affected), 3.3 Patch 3 (affected), 3.4.0 (affected), 3.2.0 p7 (affected), 3.3 Patch 4 (affected), 3.4 Patch 1 (affected), 3.1.0 p10 (affected), 3.3 Patch 5 (affected), 3.3 Patch 6 (affected), 3.4 Patch 2 (affected), 3.3 Patch 7 (affected), 3.4 Patch 3 (affected), 3.5.0 (affected), 3.4 Patch 4 (affected), 3.3 Patch 8 (affected), 3.2 Patch 8 (affected), 3.5 Patch 1 (affected), 3.3 Patch 9 (affected), 3.2 Patch 9 (affected), 3.4 Patch 5 (affected), 3.5 Patch 3 (affected), 3.5 Patch 2 (affected), 3.3 Patch 10 (affected), 3.3 Patch 11 (affected), 3.4 Patch 6 (affected), 3.2 Patch 10 (affected), 3.1.0 p72 (affected), 3.1.0 p11 (affected)
Cisco Cisco ISE Passive Identity Connector 3.2.0 (affected), 3.1.0 (affected), 3.3.0 (affected), 3.4.0 (affected), 3.5.0 (affected)

References & Technical Advisories

No reference links found.

Threat Intelligence Signals

Identity & Timeline

StatusPUBLISHED
Assigning AuthorityCisco Systems, Inc. · Hosted Service · USA
Reserved2025-10-08T11:59:15
Published2026-09-16T16:56:18
Last Updated2026-09-17T11:39:24

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