CVE-2026-76460
KEV: known exploited SSVC: activeCisco Identity Services Engine Authentication Bypass Vulnerability
CVSS v3.1 (listed by NVD)
10.0
CRITICAL
Scored by cisco.com (not yet scored by NVD)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0 (listed by NVD)
—
Not scored
CVSS (listed by CVE.org)
10.0
CRITICAL
Scored by CNA (cisco) · v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS exploit probability
66.6%
Percentile 99.3%
as of 2026-10-24
CISA KEV
Listed
Added 2026-09-16 / due 2026-09-19
Ransomware use: Unknown
SSVC (CISA ADP)
active
Automatable: yes / Impact: total
Attack conditions and impact
Derived from the CNA (via NVD) CVSS 3.1 vector
NetworkNo authNo interaction
Scope change
Confidentiality HIntegrity HAvailability H
This vulnerability may be exploitable over the internet without authentication or user interaction.
| Metric | Value | Meaning |
|---|---|---|
| Attack vector AV | N | Network |
| Attack complexity AC | L | Low (easy) |
| Privileges required PR | N | None |
| User interaction UI | N | None |
| Scope S | C | Changed (affects other components) |
| Confidentiality C | H | High |
| Integrity I | H | High |
| Availability A | H | High |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Description
NVD
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.
CISA KEV entry
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.
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.
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
CVSS assessments
| Provider | Version | Score | Vector |
|---|---|---|---|
| NVD / [email protected] (Secondary) | 3.1 | 10.0 CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| CNA / cisco | 3.1 | 10.0 CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
Affected products and packages
CNA (CVE.org)
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco Identity Services Engine Software | affected: 3.1.0 p8 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 p11 … default: unknown |
| Cisco | Cisco ISE Passive Identity Connector | affected: 3.4.0 affected: 3.5.0 default: unknown |
NVD CPE (88)
Show CPE list
| Vendor | Product | Range | CPE |
|---|---|---|---|
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.1.0:-:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.1.0:patch1:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.1.0:patch10:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.1.0:patch11:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.1.0:patch2:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.1.0:patch3:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.1.0:patch4:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.1.0:patch5:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.1.0:patch6:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.1.0:patch7:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.1.0:patch8:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.1.0:patch9:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.2.0:-:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.2.0:patch1:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.2.0:patch10:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.2.0:patch2:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.2.0:patch3:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.2.0:patch4:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.2.0:patch5:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.2.0:patch6:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.2.0:patch7:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.2.0:patch8:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.2.0:patch9:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.3.0:-:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch1:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch10:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch11:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch2:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch3:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch4:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch5:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch6:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch7:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch8:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch9:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.4.0:-:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch1:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch2:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch3:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch4:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch5:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch6:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.5.0:-:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.5.0:patch1:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.5.0:patch2:*:*:*:*:*:* | |
| cisco | identity_services_engine | cpe:2.3:a:cisco:identity_services_engine:3.5.0:patch3:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.1.0:-:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.1.0:patch1:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.1.0:patch10:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.1.0:patch11:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.1.0:patch2:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.1.0:patch3:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.1.0:patch4:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.1.0:patch5:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.1.0:patch6:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.1.0:patch7:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.1.0:patch8:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.1.0:patch9:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.2.0:-:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.2.0:patch1:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.2.0:patch10:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.2.0:patch2:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.2.0:patch3:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.2.0:patch4:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.2.0:patch5:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.2.0:patch6:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.2.0:patch7:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.2.0:patch8:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.2.0:patch9:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:-:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch1:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch10:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch11:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch2:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch3:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch4:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch5:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch6:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch7:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch8:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch9:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:-:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch1:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch2:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch3:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch4:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch5:*:*:*:*:*:* | |
| cisco | identity_services_engine_passive_identity_connector | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch6:*:*:*:*:*:* |
Linux distribution status
References (2)
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ISE-ABP-VNSW7Tn5 NVD, CNA MitigationVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-76460 NVD, ADP CISA-ADP US Government Resourcegovernment-resource