CVE-2026-20234

CRITICAL9.9

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

CVSS breakdown

CVSS 3.1

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Affected products

Cisco / Cisco Identity Services Engine Software3.1.0 – 3.1.0
Cisco / Cisco Identity Services Engine Software3.1.0 p1 – 3.1.0 p1
Cisco / Cisco Identity Services Engine Software3.1.0 p3 – 3.1.0 p3
Cisco / Cisco Identity Services Engine Software3.1.0 p2 – 3.1.0 p2
Cisco / Cisco Identity Services Engine Software3.2.0 – 3.2.0
Cisco / Cisco Identity Services Engine Software3.1.0 p4 – 3.1.0 p4
Cisco / Cisco Identity Services Engine Software3.1.0 p5 – 3.1.0 p5
Cisco / Cisco Identity Services Engine Software3.2.0 p1 – 3.2.0 p1
Cisco / Cisco Identity Services Engine Software3.1.0 p6 – 3.1.0 p6
Cisco / Cisco Identity Services Engine Software3.2.0 p2 – 3.2.0 p2
Cisco / Cisco Identity Services Engine Software3.1.0 p7 – 3.1.0 p7
Cisco / Cisco Identity Services Engine Software3.3.0 – 3.3.0
Cisco / Cisco Identity Services Engine Software3.2.0 p3 – 3.2.0 p3
Cisco / Cisco Identity Services Engine Software3.2.0 p4 – 3.2.0 p4
Cisco / Cisco Identity Services Engine Software3.1.0 p8 – 3.1.0 p8
Cisco / Cisco Identity Services Engine Software3.2.0 p5 – 3.2.0 p5
Cisco / Cisco Identity Services Engine Software3.2.0 p6 – 3.2.0 p6
Cisco / Cisco Identity Services Engine Software3.1.0 p9 – 3.1.0 p9
Cisco / Cisco Identity Services Engine Software3.3 Patch 2 – 3.3 Patch 2
Cisco / Cisco Identity Services Engine Software3.3 Patch 1 – 3.3 Patch 1
Cisco / Cisco Identity Services Engine Software3.3 Patch 3 – 3.3 Patch 3
Cisco / Cisco Identity Services Engine Software3.4.0 – 3.4.0
Cisco / Cisco Identity Services Engine Software3.2.0 p7 – 3.2.0 p7
Cisco / Cisco Identity Services Engine Software3.3 Patch 4 – 3.3 Patch 4
Cisco / Cisco Identity Services Engine Software3.4 Patch 1 – 3.4 Patch 1
Cisco / Cisco Identity Services Engine Software3.1.0 p10 – 3.1.0 p10
Cisco / Cisco Identity Services Engine Software3.3 Patch 5 – 3.3 Patch 5
Cisco / Cisco Identity Services Engine Software3.3 Patch 6 – 3.3 Patch 6
Cisco / Cisco Identity Services Engine Software3.4 Patch 2 – 3.4 Patch 2
Cisco / Cisco Identity Services Engine Software3.3 Patch 7 – 3.3 Patch 7
Cisco / Cisco Identity Services Engine Software3.4 Patch 3 – 3.4 Patch 3
Cisco / Cisco Identity Services Engine Software3.5.0 – 3.5.0
Cisco / Cisco Identity Services Engine Software3.4 Patch 4 – 3.4 Patch 4
Cisco / Cisco Identity Services Engine Software3.3 Patch 8 – 3.3 Patch 8
Cisco / Cisco Identity Services Engine Software3.2 Patch 8 – 3.2 Patch 8
Cisco / Cisco Identity Services Engine Software3.5 Patch 1 – 3.5 Patch 1
Cisco / Cisco Identity Services Engine Software3.3 Patch 9 – 3.3 Patch 9
Cisco / Cisco Identity Services Engine Software3.2 Patch 9 – 3.2 Patch 9
Cisco / Cisco Identity Services Engine Software3.4 Patch 5 – 3.4 Patch 5
Cisco / Cisco Identity Services Engine Software3.5 Patch 3 – 3.5 Patch 3
Cisco / Cisco Identity Services Engine Software3.5 Patch 2 – 3.5 Patch 2
Cisco / Cisco Identity Services Engine Software3.3 Patch 10 – 3.3 Patch 10
Cisco / Cisco Identity Services Engine Software3.3 Patch 11 – 3.3 Patch 11
Cisco / Cisco Identity Services Engine Software3.4 Patch 6 – 3.4 Patch 6
Cisco / Cisco Identity Services Engine Software3.2 Patch 10 – 3.2 Patch 10
Cisco / Cisco Identity Services Engine Software3.1.0 p72 – 3.1.0 p72
Cisco / Cisco Identity Services Engine Software3.1.0 p11 – 3.1.0 p11
Cisco / Cisco ISE Passive Identity Connector3.2.0 – 3.2.0
Cisco / Cisco ISE Passive Identity Connector3.1.0 – 3.1.0
Cisco / Cisco ISE Passive Identity Connector3.3.0 – 3.3.0
Cisco / Cisco ISE Passive Identity Connector3.4.0 – 3.4.0
Cisco / Cisco ISE Passive Identity Connector3.5.0 – 3.5.0

References

VENDOR_ADVISORYhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-ise-XU5EwX5T

Updated 7m ago · 8 sources