CVE-2026-20235

Cisco Identity Services Engine Information Disclosure Vulnerability

Published Sep 16, 2026 CVSS 3.1 · 4.9 Medium EPSS < 1% KEV · Not listed

Description

A vulnerability in the API of Cisco Identity Services Engine (ISE) could allow an authenticated, remote attacker to view sensitive information on an affected device. To exploit this vulnerability, the attacker must have valid administrative credentials.

This vulnerability is due to insufficient validation of user-supplied parameters in API requests. An attacker could exploit this vulnerability by sending a crafted API request to an affected device. A successful exploit could allow the attacker to gain access to sensitive information, including hashed credentials that could be used in future attacks.

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 p72`	affected	—
`3.1.0 p11`	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 p72`	affected	generic	—
`3.1.0 p11`	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 High

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

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% (0.484% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-inf-disc-LFWvcCu

History

Sep 22, 2026 9:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Sep 18, 2026 12:15 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

Sep 16, 2026 8:30 PM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		A vulnerability in the API of Cisco Identity Services Engine (ISE) could allow an authenticated, remote attacker to view sensitive information on an affected device. To exploit this vulnerability, the attacker must have valid administrative credentials. This vulnerability is due to insufficient validation of user-supplied parameters in API requests. An attacker could exploit this vulnerability by sending a crafted API request to an affected device. A successful exploit could allow the attacker to gain access to sensitive information, including hashed credentials that could be used in future attacks.
Title		Cisco Identity Services Engine Information Disclosure Vulnerability
Weaknesses		CWE-89
References		https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-inf-disc-LFWvcCu
Metrics		cvssV3_1 `{'score': 4.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N'}`