Cisco Identity Services Engine Hardening Release - Insuffiencently Protected Credential Vulnerabilities

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-20234
StatePUBLISHED
Assignercisco
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-16 17:17:16 UTC
Updated2026-09-17 04:17:37 UTC
DescriptionAs 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.

Risk And Classification

Primary CVSS: v3.1 9.9 CRITICAL from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Problem Types: CWE-522 | CWE-522 Insufficiently Protected Credentials

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary9.9CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
3.1CNACVSSV3_19.9CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 p1 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 p3 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 p2 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.2.0 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 p4 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 p5 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.2.0 p1 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 p6 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.2.0 p2 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 p7 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.3.0 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.2.0 p3 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.2.0 p4 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 p8 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.2.0 p5 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.2.0 p6 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 p9 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.3 Patch 2 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.3 Patch 1 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.3 Patch 3 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.4.0 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.2.0 p7 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.3 Patch 4 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.4 Patch 1 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 p10 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.3 Patch 5 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.3 Patch 6 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.4 Patch 2 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.3 Patch 7 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.4 Patch 3 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.5.0 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.4 Patch 4 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.3 Patch 8 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.2 Patch 8 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.5 Patch 1 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.3 Patch 9 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.2 Patch 9 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.4 Patch 5 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.5 Patch 3 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.5 Patch 2 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.3 Patch 10 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.3 Patch 11 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.4 Patch 6 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.2 Patch 10 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 p72 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 p11 Not specified
CNA Cisco Cisco ISE Passive Identity Connector affected 3.2.0 Not specified
CNA Cisco Cisco ISE Passive Identity Connector affected 3.1.0 Not specified
CNA Cisco Cisco ISE Passive Identity Connector affected 3.3.0 Not specified
CNA Cisco Cisco ISE Passive Identity Connector affected 3.4.0 Not specified
CNA Cisco Cisco ISE Passive Identity Connector affected 3.5.0 Not specified

References

ReferenceSourceLinkTags
sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-harden... [email protected] sec.cloudapps.cisco.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

Exploits

CNA: Except as otherwise noted previously, the Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.

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