CVE-2026-20183

ISE Authorization Bypass vulnerability

Published Nov 10, 2026 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Description

A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) could allow an authenticated, remote attacker to modify parts of the configuration on an affected device.

This vulnerability is due to the lack of server-side validation of Administrator permissions. An attacker could exploit this vulnerability by submitting a crafted HTTP request to an affected system. A successful exploit could allow the attacker to modify descriptions of files on a specific page. To exploit this vulnerability, an attacker would need valid Administrator credentials.

Affected Products

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 p11`	affected	—
`3.1.0 p12`	affected	—
`3.2 Patch 11`	affected	—

No data.

Vendor Product Versions

Cisco

Identity Services Engine Software

Version	Status	Scheme	Platform
`3.1.0`	affected	semver	—
`3.1.0 p1`	affected	generic	—
`3.1.0 p3`	affected	generic	—
`3.1.0 p2`	affected	generic	—
`3.2.0`	affected	semver	—
`3.1.0 p4`	affected	generic	—
`3.1.0 p5`	affected	generic	—
`3.2.0 p1`	affected	generic	—
`3.1.0 p6`	affected	generic	—
`3.2.0 p2`	affected	generic	—
`3.1.0 p7`	affected	generic	—
`3.3.0`	affected	semver	—
`3.2.0 p3`	affected	generic	—
`3.2.0 p4`	affected	generic	—
`3.1.0 p8`	affected	generic	—
`3.2.0 p5`	affected	generic	—
`3.2.0 p6`	affected	generic	—
`3.1.0 p9`	affected	generic	—
`3.3 Patch 2`	affected	generic	—
`3.3 Patch 1`	affected	generic	—
`3.3 Patch 3`	affected	generic	—
`3.4.0`	affected	semver	—
`3.2.0 p7`	affected	generic	—
`3.3 Patch 4`	affected	generic	—
`3.4 Patch 1`	affected	generic	—
`3.1.0 p10`	affected	generic	—
`3.3 Patch 5`	affected	generic	—
`3.3 Patch 6`	affected	generic	—
`3.4 Patch 2`	affected	generic	—
`3.3 Patch 7`	affected	generic	—
`3.4 Patch 3`	affected	generic	—
`3.5.0`	affected	semver	—
`3.4 Patch 4`	affected	generic	—
`3.3 Patch 8`	affected	generic	—
`3.2 Patch 8`	affected	generic	—
`3.5 Patch 1`	affected	generic	—
`3.3 Patch 9`	affected	generic	—
`3.2 Patch 9`	affected	generic	—
`3.4 Patch 5`	affected	generic	—
`3.5 Patch 3`	affected	generic	—
`3.5 Patch 2`	affected	generic	—
`3.3 Patch 10`	affected	generic	—
`3.3 Patch 11`	affected	generic	—
`3.4 Patch 6`	affected	generic	—
`3.2 Patch 10`	affected	generic	—
`3.1.0 p11`	affected	generic	—
`3.1.0 p12`	affected	generic	—
`3.2 Patch 11`	affected	generic	—

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.470% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-auth-bypass-1-MxcTNgwx

History

Nov 13, 2026 11:15 AM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Cisco Cisco identity Services Engine Software
Vendors & Products		Cisco Cisco identity Services Engine Software

Nov 10, 2026 11:00 PM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) could allow an authenticated, remote attacker to modify parts of the configuration on an affected device. This vulnerability is due to the lack of server-side validation of Administrator permissions. An attacker could exploit this vulnerability by submitting a crafted HTTP request to an affected system. A successful exploit could allow the attacker to modify descriptions of files on a specific page. To exploit this vulnerability, an attacker would need valid Administrator credentials.
Title		ISE Authorization Bypass vulnerability
Weaknesses		CWE-285
References		https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-auth-bypass-1-MxcTNgwx
Metrics		cvssV3_1 `{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}`