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Advisory severityCritical10.0Cisco Exploited

Critical [CVE-2026-20130 +5] Cisco Identity Services Engine Hardening Release: September 2026

This critical-severity Cisco advisory covers CVE-2026-20130 and CVE-2026-20192 and 4 more CVEs affecting Identity Services Engine Software, ISE Passive Identity Connector.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations. This bulletin covers 6 CVEs; its score, affected versions and guidance may apply to different issues within that bulletin.

cisco-sa-hardening-ise-XU5EwX5T Source published Source updated

VulniPulse record published Record updated

CVE-2026-20130CVE-2026-20192CVE-2026-20194CVE-2026-20234CVE-2026-20237CVE-2026-20287
Affected products & platforms
CiscoISEIdentity Services Engine
Open source advisory

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Summary

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 software hardening releases that address multiple internally discovered vulnerabilities.

These vulnerabilities were found during internal testing. One of them is known to be actively exploited.

For more information, see Cisco Identity Services Engine Authentication Bypass Vulnerability.

To assist customers in patching and streamline the disclosure process, Cisco has grouped these issues by their underlying vulnerability class — Common Weakness Enumeration (CWE) — and assigned a single Common Vulnerabilities and Exposures identifier (CVE ID) to each CWE grouping.

Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.

This advisory is part of a group of advisories. For a complete list of the advisories and links to them, see Cisco Advance Notification for Publication of September 16, 2026, Security Advisories.

Affected products named by the advisory: Identity Services Engine Software.

Affected versions
  • Scope: These vulnerabilities affect Cisco ISE and ISE-PIC, regardless of device configuration.
  • 3.01 and earlier — Migrate to fixed release
  • Release 3.12 (first fixed: 3.1 Patch 12)
  • Release 3.22 (first fixed: 3.2 Patch 11)
  • Release 3.3 (first fixed: 3.3 Patch 12)
  • Release 3.4 (first fixed: 3.4 Patch 7)
  • Release 3.53 (first fixed: 3.5 Patch 4)

Official advisory · high-confidence parse· fetched 13 days ago·verify at source

Fixed versions
  • 3.1 Patch 12
  • 3.2 Patch 11
  • 3.3 Patch 12
  • 3.4 Patch 7
  • 3.5 Patch 4

Official advisory · high-confidence parse· fetched 13 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Upgrade to the first fixed release for your train per the Fixed Releases table in this advisory.
  • Release 3.01 and earlier: migrate to fixed release.
  • Release 3.12: upgrade to 3.1 Patch 12.
  • Release 3.22: upgrade to 3.2 Patch 11.
  • Release 3.3: upgrade to 3.3 Patch 12.
  • Release 3.4: upgrade to 3.4 Patch 7.
  • Release 3.53: upgrade to 3.5 Patch 4.
Workaround status
  • There are no workarounds that address these vulnerabilities.

Official advisory · high-confidence parse· fetched 13 days ago·verify at source

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