VDB
CVE-2026-20234
CVE-2026-20234
PUBLISHED
CVSS 9.9 CRITICAL
Reported by cisco · Published September 16, 2026
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.
Risk Scores
CVSS 3.1
9.9
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco Identity Services Engine Software | 3.1.0, 3.1.0 p1, 3.1.0 p3 |
| Cisco | Cisco ISE Passive Identity Connector | 3.2.0, 3.1.0, 3.3.0 |
| Cisco | Cisco ISE Passive Identity Connector | 3.2.0, 3.1.0, 3.3.0 |
| Cisco | Cisco Identity Services Engine Software | 3.1.0 p4, 3.1.0 p5, 3.2.0 p1 |
Timeline
- Sep 16, 2026 Coalition ESS Score
- Sep 16, 2026 CVE Published
- Sep 17, 2026 CVE Updated