Summary
generated automatically from NVD dataCisco Identity Services Engine (ISE) and its Passive Identity Connector have an API endpoint with insufficient authentication control (CWE-648). An unauthenticated remote attacker could send a crafted request to that endpoint, bypass authentication, and gain unauthorized access to the device through the web-based management interface. The flaw is rated CRITICAL with a CVSS v3.1 score of 10.0 and is listed in the CISA KEV catalog, which indicates active exploitation.
NVD 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.
⚠️ Actively exploited — CISA KEV
This CVE was added to CISA's Known Exploited Vulnerabilities catalog on 2026-09-16. It is confirmed exploited in the wild and must be patched as a priority.
Remediation deadline (US federal agencies): 2026-09-19
EPSS · FIRST.org
14.0%probability of exploitation in the next 30 days
Higher than 96% of scored CVEs
EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-16, recomputed daily by FIRST.org.
In-depth analysis on cveo.tech
We've published a detailed analysis of this CVE — exploitation, IOCs and mitigation.
CVSS v3.1 Score
Information
- Published
- 16 sept. 2026
- Updated
- 7 oct. 2026
- Status
- Analyzed
- Source
- psirt@cisco.com
Affected products
Weaknesses (CWE)
References (2)
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-76460US Government Resource
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