Cisco Identity Services Engine Authentication Bypass Vulnerability

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-76460
StatePUBLISHED
Assignercisco
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-16 21:17:21 UTC
Updated2026-09-17 04:18:01 UTC
DescriptionA vulnerability in an API of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to bypass authentication. This vulnerability is due to insufficient authentication control on an API endpoint. An attacker could exploit this vulnerability by sending a crafted request to an affected API endpoint. A successful exploit could allow the attacker to gain unauthorized access to the affected device by bypassing the web-based management interface.

Risk And Classification

Primary CVSS: v3.1 10 CRITICAL from [email protected]

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

Problem Types: CWE-648 | CWE-648 Incorrect Use of Privileged APIs

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary10CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
3.1CNACVSSV3_110CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Cisco Cisco Identity Services Engine Software affected 3.1.0 p8 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 3.4.0 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-AB... [email protected] sec.cloudapps.cisco.com
www.cisa.gov/known-exploited-vulnerabilities-catalog 134c704f-9b21-4f2e-91b3-4a467353bcc0 www.cisa.gov
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 aware of active exploitation of this vulnerability. Cisco strongly recommends that customers upgrade to a fixed software release to remediate this vulnerability.

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