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Advisory severityMedium5.3Cisco Updated

Medium [CVE-2026-20241] Cisco Identity Services Engine Authorization Bypass Vulnerability

This medium-severity Cisco advisory covers CVE-2026-20241 affecting ISE Passive Identity Connector, Identity Services Engine Software.

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cisco-sa-ise-cert-mE9BD5GO Source published Source updated

VulniPulse record published Record updated

CVE-2026-20241
Affected products & platforms
CiscoISEIdentity Services Engine
Open source advisory

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Summary

A vulnerability in the authorization mechanism of Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an unauthenticated, remote attacker to obtain an endpoint identity certificate.

This vulnerability is due to improper authorization checks. An attacker could exploit this vulnerability by sending a crafted request to an affected device.

A successful exploit could allow the attacker to bypass authorization to obtain an endpoint certificate.

Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

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

Affected versions
  • Scope: At the time of publication, this vulnerability affected Cisco ISE and Cisco ISE-PIC, regardless of device configuration.
  • Release 3.1 (first fixed: 3.1 Patch 12)
  • Release 3.2 (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 3.5* (first fixed: 3.5 Patch 4)

Official advisory · high-confidence parse· fetched 10 hours 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 10 hours 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 3.1: upgrade to 3.1 Patch 12.
  • Release 3.2: 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 3.5*: upgrade to 3.5 Patch 4.
Workaround status
  • There are no workarounds that address this vulnerability.

Official advisory · high-confidence parse· fetched 10 hours ago·verify at source

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