CVEvulnerability

CVE-2026-76460

10.0 CRITICAL Known exploited Published 2026-09-16 Modified 2026-10-07 Official page ↗

CISA Known Exploited Vulnerability

Cisco Identity Services Engine Incorrect Use of Privileged APIs Vulnerability — Cisco Identity Services Engine

Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) contain an incorrect use of privileged APIs vulnerability that could allow an unauthenticated, remote attacker to gain unauthorized access to the affected device by bypassing the web-based management interface.

Added to KEV: 2026-09-16
Remediation due: 2026-09-19
Ransomware use: Unknown
Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Notes: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ISE-ABP-VNSW7Tn5 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-76460

Status: Analyzed
Published: 2026-09-16
Last modified: 2026-10-07
Assigner: [email protected]
CVSS 3.1 ([email protected]): 10.0 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Weaknesses: CWE-648

Description

A 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.

Affected configurations

• cisco identity services engine 3.1.0 • cisco identity services engine 3.2.0 • cisco identity services engine 3.3.0 • cisco identity services engine 3.4.0 • cisco identity services engine 3.5.0 • cisco identity services engine passive identity connector 3.1.0 • cisco identity services engine passive identity connector 3.2.0 • cisco identity services engine passive identity connector 3.3.0 • cisco identity services engine passive identity connector 3.4.0

Weakness · CWE (1)

CWE-648 Incorrect Use of Privileged APIs weakness

References