A vulnerability in the REST API of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to gain administrative access to an affected device.

This vulnerability is due to the REST API web service being exposed with insufficient authorization checks. An attacker could exploit this vulnerability by sending a crafted HTTP request to the exposed REST API port. A successful exploit could allow the attacker to read and modify ISE configuration and identity data with administrative privileges.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Cisco Cisco Identity Services Engine Software unknown
Version Status Constraints
3.1.0 affected —
3.1.0 p1 affected —
3.1.0 p3 affected —
3.1.0 p2 affected —
3.2.0 affected —
3.1.0 p4 affected —
3.1.0 p5 affected —
3.2.0 p1 affected —
3.1.0 p6 affected —
3.2.0 p2 affected —
3.1.0 p7 affected —
3.3.0 affected —
3.2.0 p3 affected —
3.2.0 p4 affected —
3.1.0 p8 affected —
3.2.0 p5 affected —
3.2.0 p6 affected —
3.1.0 p9 affected —
3.3 Patch 2 affected —
3.3 Patch 1 affected —
3.3 Patch 3 affected —
3.4.0 affected —
3.2.0 p7 affected —
3.3 Patch 4 affected —
3.4 Patch 1 affected —
3.1.0 p10 affected —
3.3 Patch 5 affected —
3.3 Patch 6 affected —
3.4 Patch 2 affected —
3.3 Patch 7 affected —
3.4 Patch 3 affected —
3.5.0 affected —
3.4 Patch 4 affected —
3.3 Patch 8 affected —
3.2 Patch 8 affected —
3.5 Patch 1 affected —
3.3 Patch 9 affected —
3.2 Patch 9 affected —
3.4 Patch 5 affected —
3.5 Patch 3 affected —
3.5 Patch 2 affected —
3.3 Patch 10 affected —
3.3 Patch 11 affected —
3.4 Patch 6 affected —
3.2 Patch 10 affected —
3.1.0 p72 affected —
3.1.0 p11 affected —
3.3 Patch 12 affected —
Cisco Cisco ISE Passive Identity Connector unknown
Version Status Constraints
3.2.0 affected —
3.1.0 affected —
3.3.0 affected —
3.4.0 affected —
3.5.0 affected —

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multi-hrP9jQSQ cve-icon cve-icon
History

Wed, 16 Sep 2026 20:15:00 +0000

Type Values Removed Values Added
Description A vulnerability in the REST API of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to gain administrative access to an affected device. This vulnerability is due to the REST API web service being exposed with insufficient authorization checks. An attacker could exploit this vulnerability by sending a crafted HTTP request to the exposed REST API port. A successful exploit could allow the attacker to read and modify ISE configuration and identity data with administrative privileges.
Title Cisco ISE API Authentication Bypass Vulnerability
Weaknesses CWE-290
References
Metrics cvssV3_1

{'score': 10, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2026-09-16T20:08:18.212Z

Reserved: 2026-08-19T12:02:03.633Z

Link: CVE-2026-76423

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-16T20:17:28.717

Modified: 2026-09-16T20:35:23.620

Link: CVE-2026-76423

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses