CVEs / CVE-2026-76460
CVE-2026-76460: Cisco Identity Services Engine Incorrect Use of Privileged APIs Vulnerability
- Known exploited in the CISA KEV catalog since 16 Sep 2026
- critical 10 CVSS 3.1 (from the CNA)
- EPSS 75.5% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
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.
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 and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Cisco Cisco Identity Services Engine Software | 3.1.0 p8 | — |
| Cisco Cisco Identity Services Engine Software | 3.1.0 p9 | — |
| Cisco Cisco Identity Services Engine Software | 3.3 Patch 2 | — |
| Cisco Cisco Identity Services Engine Software | 3.3 Patch 1 | — |
| Cisco Cisco Identity Services Engine Software | 3.3 Patch 3 | — |
| Cisco Cisco Identity Services Engine Software | 3.4.0 | — |
| Cisco Cisco Identity Services Engine Software | 3.2.0 p7 | — |
| Cisco Cisco Identity Services Engine Software | 3.3 Patch 4 | — |
| Cisco Cisco Identity Services Engine Software | 3.4 Patch 1 | — |
| Cisco Cisco Identity Services Engine Software | 3.1.0 p10 | — |
| Cisco Cisco Identity Services Engine Software | 3.3 Patch 5 | — |
| Cisco Cisco Identity Services Engine Software | 3.3 Patch 6 | — |
| Cisco Cisco Identity Services Engine Software | 3.4 Patch 2 | — |
| Cisco Cisco Identity Services Engine Software | 3.3 Patch 7 | — |
| Cisco Cisco Identity Services Engine Software | 3.4 Patch 3 | — |
| Cisco Cisco Identity Services Engine Software | 3.5.0 | — |
| Cisco Cisco Identity Services Engine Software | 3.4 Patch 4 | — |
| Cisco Cisco Identity Services Engine Software | 3.3 Patch 8 | — |
| Cisco Cisco Identity Services Engine Software | 3.2 Patch 8 | — |
| Cisco Cisco Identity Services Engine Software | 3.5 Patch 1 | — |
| Cisco Cisco Identity Services Engine Software | 3.3 Patch 9 | — |
| Cisco Cisco Identity Services Engine Software | 3.2 Patch 9 | — |
| Cisco Cisco Identity Services Engine Software | 3.4 Patch 5 | — |
| Cisco Cisco Identity Services Engine Software | 3.5 Patch 3 | — |
| Cisco Cisco Identity Services Engine Software | 3.5 Patch 2 | — |
| Cisco Cisco Identity Services Engine Software | 3.3 Patch 10 | — |
| Cisco Cisco Identity Services Engine Software | 3.3 Patch 11 | — |
| Cisco Cisco Identity Services Engine Software | 3.4 Patch 6 | — |
| Cisco Cisco Identity Services Engine Software | 3.2 Patch 10 | — |
| Cisco Cisco Identity Services Engine Software | 3.1.0 p11 | — |
Exploitation
| In CISA KEV since | 16 Sep 2026 |
|---|---|
| Due date for US federal agencies | 19 Sep 2026 |
| Used in ransomware campaigns | 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. |
Severity
| CVSS 3.1 | 10 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HScored by the CNA ([email protected]) |
|---|---|
| Weakness | CWE-648 |
References
- CVE-2026-76460 on NVD
- CVE-2026-76460 in the CISA KEV catalog
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ISE-ABP-VNSW7Tn5 (cited by CISA)
- https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk (cited by CISA)
- https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk (cited by CISA)
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ISE-ABP-VNSW7Tn5 Mitigation, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-76460 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.