Threat level Severe
Contact
Critical 10.0Actively exploited
CVE-2026-76460

Cisco Identity Services Engine — Incorrect Use of Privileged APIs.

A vulnerability in an API of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to bypass authentication.

WeaknessCWE-648
Published Updated Source NVD and CISA KEV
Read vendor advisoryView on NVD
CVSS 3.1
10.0
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Exploit chance, 30 days
76%
Higher than 99% of all CVEs (EPSS)
Status
Actively exploited
On CISA KEV since 16 Sep 2026
Patch
Unknown
Check the vendor advisory

What happened

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.

What to do

  1. 01Check whether you run Cisco Identity Services Engine, and which version.
  2. 02Follow the vendor advisory for a fix or a workaround.
  3. 03Apply 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.
CISA deadlineUS federal agencies must remediate by

References

Timeline · UTC

  1. Added to CISA KEV
  2. Published to NVD
  3. CISA remediation deadline
  4. NVD record updated

Also actively exploited

CVE-2026-764188.6Cisco Secure Firewall ASA Software and Cisco Secure FTD SoftwareCVE-2026-1146259.9Arista VeloCloud OrchestratorCVE-2026-1114979.8Google Brotli
Vendor
Cisco23 CVEs in 30 days
All Cisco CVEs

Other CVEs from Cisco

29 more CVEs, 8 actively exploited

All Cisco CVEs
8.6Cisco Secure Firewall ASA Software and Cisco Secure FTD Software — Unchecked Return Value to NULL Pointer Dereference.ExploitedEPSS 0.8%9.8Cisco Secure Email Gateway — Relative Path Traversal.ExploitedEPSS 2.2%9.8Cisco Catalyst SD-WAN Manager — Hex Encoding.ExploitedEPSS 39%9.8Cisco Secure Email Gateway — SQL Injection.ExploitedEPSS 30%8.6Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) — Heap Inspection.ExploitedEPSS 1.0%5.3Cisco Secure Firewall Management Center (FMC) — Secure Firewall Management Center Use of Hard-coded Password.ExploitedEPSS 35%