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Advisory severityCritical9.1Cisco

Critical [CVE-2026-20181 +1] Cisco Identity Services Engine Remote Code Execution and Information Disclosure Vulnerabilities

This critical-severity Cisco advisory covers CVE-2026-20181 and CVE-2026-20190; related products: Identity Services Engine Software, ISE Passive Identity Connector.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations. This bulletin covers 2 CVEs; its score, affected versions and guidance may apply to different issues within that bulletin.

cisco-sa-ise-multi-G5WP8vv Source published Source updated

VulniPulse record published Record updated

CVE-2026-20181CVE-2026-20190
Related products & platforms
CiscoISEIdentity Services Engine
Open source advisory

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Summary

Multiple vulnerabilities in Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow a remote attacker to achieve remote code execution or conduct information disclosure attacks on an affected device.

For more information about these vulnerabilities, see the Details section of this advisory.

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

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

Affected versions
  • Scope: These vulnerabilities affect Cisco ISE and Cisco ISE-PIC, regardless of device configuration.
  • Earlier than 3.3 — Migrate to a fixed release
  • Release 3.3 (first fixed: 3.3 Patch 11)
  • Release 3.4 (first fixed: 3.4 Patch 6)
  • Release 3.5 (first fixed: 3.5 Patch 4 (Aug 2026) or hot patch / 3.5 Patch 3)

Official advisory · high-confidence parse· fetched 3 months ago·verify at source

Fixed versions
  • 3.3 Patch 11
  • 3.4 Patch 6
  • 3.5 Patch 4 (Aug 2026) or hot patch / 3.5 Patch 3

Official advisory · high-confidence parse· fetched 3 months 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.
  • Earlier than 3.3: migrate to a fixed release.
  • Release 3.3: upgrade to 3.3 Patch 11.
  • Release 3.4: upgrade to 3.4 Patch 6.
  • Release 3.5: upgrade to 3.5 Patch 4 (Aug 2026) or hot patch / 3.5 Patch 3.
Workaround status
  • There are no workarounds that address these vulnerabilities.

Official advisory · high-confidence parse· fetched 3 months ago·verify at source

Discussion(1)

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