Cisco Identity Services Engine Authorization Bypass Vulnerability

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-20241
StatePUBLISHED
Assignercisco
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-04 17:17:35 UTC
Updated2026-11-04 19:17:40 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Problem Types: CWE-285 | CWE-285 Improper Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
3.1CNACVSSV3_15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 p1 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 p3 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 p2 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.2.0 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 p4 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 p5 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.2.0 p1 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 p6 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.2.0 p2 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 p7 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.3.0 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.2.0 p3 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.2.0 p4 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 p8 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.2.0 p5 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.2.0 p6 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 p9 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.3 Patch 2 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.3 Patch 1 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.3 Patch 3 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.4.0 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.2.0 p7 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.3 Patch 4 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.4 Patch 1 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 p10 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.3 Patch 5 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.3 Patch 6 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.4 Patch 2 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.3 Patch 7 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.4 Patch 3 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.5.0 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.4 Patch 4 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.3 Patch 8 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.2 Patch 8 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.5 Patch 1 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.3 Patch 9 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.2 Patch 9 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.4 Patch 5 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.5 Patch 3 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.5 Patch 2 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.3 Patch 10 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.3 Patch 11 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.4 Patch 6 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.2 Patch 10 Not specified
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 p11 Not specified
CNA Cisco Cisco ISE Passive Identity Connector affected 3.2.0 Not specified
CNA Cisco Cisco ISE Passive Identity Connector affected 3.1.0 Not specified
CNA Cisco Cisco ISE Passive Identity Connector affected 3.3.0 Not specified
CNA Cisco Cisco ISE Passive Identity Connector affected 3.4.0 Not specified
CNA Cisco Cisco ISE Passive Identity Connector affected 3.5.0 Not specified

References

ReferenceSourceLinkTags
sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-ce... [email protected] sec.cloudapps.cisco.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

Exploits

CNA: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.

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