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CVE-2026-76460— Cisco Identity Services Engine Authentication Bypass Vulnerability

Quick assessment

Affected
Cisco Cisco Identity Services Engine Software
Exploitation
Confirmed exploitation in the wild; remediate immediately
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

思科身份服务引擎（Cisco Identity Services Engine, ISE）中的 API 存在一个漏洞，可能导致经过身份验证的远程攻击者能够绕过身份验证机制。 该漏洞源于某个 API 端点缺乏足够的身份验证控制。攻击者可通过向受影响的 API 端点发送经过构造的请求来利用此漏洞。若成功利用，攻击者将能够绕过基于 Web 的管理界面，从而获得对受影响设备未经授权的访问权限。

CVSS 10.0 · Critical KEV EPSS 75.60% · P100

Affected Version Matrix 32

VendorProduct Version RangeStatus
Cisco Cisco Identity Services Engine Software 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
… +22 more rows
Cisco Cisco ISE Passive Identity Connector 3.4.0 affected
3.5.0 affected
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I. Basic Information for CVE-2026-76460

Vulnerability Information
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Vulnerability Title
Cisco Identity Services Engine Authentication Bypass Vulnerability
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权API的不正确使用
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Cisco Cisco Identity Services Engine Software 3.1.0 p8 -
Cisco Cisco ISE Passive Identity Connector 3.4.0 -

II. Public POCs for CVE-2026-76460

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III. Intelligence Information for CVE-2026-76460

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Vendor Advisories for CVE-2026-76460 (1)

Same Patch Batch · Cisco · 2026-09-16 · 79 CVEs total

CVE-2026-76423 10.0 CRITICAL Cisco ISE API Authentication Bypass Vulnerability
CVE-2026-20130 10.0 CRITICAL Cisco Identity Services Engine Hardening Release - Improper Neutralization Vulnerabilities
CVE-2026-20192 10.0 CRITICAL Cisco Identity Services Engine Hardening Release - Access Control Vulnerabilities
CVE-2026-20332 9.9 CRITICAL Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software
CVE-2026-20307 9.9 CRITICAL Cisco Identity Services Engine Remote Code Execution Vulnerability
CVE-2026-20234 9.9 CRITICAL Cisco Identity Services Engine Hardening Release - Insuffiencently Protected Credential Vu
CVE-2026-20329 9.9 CRITICAL Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software
CVE-2026-20322 9.9 CRITICAL Cisco Nexus Dashboard Software Security Hardening Release September 2026 - Improper Access
CVE-2026-20330 9.9 CRITICAL Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software
CVE-2026-20325 9.9 CRITICAL Cisco Nexus Dashboard Software Security Hardening Release September 2026 - Improper Neutra
CVE-2026-20324 9.9 CRITICAL Cisco Secure Firewall Management Center sftunnel Root Arbitrary Code Exectution Vulnerabil
CVE-2026-20326 9.8 CRITICAL Cisco Nexus Dashboard Software Security Hardening Release September 2026 - Missing Authent
CVE-2026-20242 9.8 CRITICAL Cisco Secure Firewall Management Center Software Java Deserialization Remote Code Executio
CVE-2026-20331 9.6 CRITICAL Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software
CVE-2026-20194 9.1 CRITICAL Cisco Identity Services Engine Hardening Release - Incorrect Resource Transfer Vulnerabili
CVE-2026-20306 9.1 CRITICAL Cisco Identity Services Engine Command Injection Vulnerability
CVE-2026-20237 9.1 CRITICAL Cisco Identity Services Engine Hardening Release - Input Validation Vulnerabilities
CVE-2026-20341 9.1 CRITICAL Cisco Secure Firewall Management Center Software sftunnel Deserialization Root Command Exe
CVE-2026-20176 9.1 CRITICAL Cisco Identity Services Engine Remote Code Execution Vulnerability
CVE-2026-20284 9.1 CRITICAL Cisco Identity Search Engine SXP REST API SQL Injection Vulnerability

Showing top 20 of 79 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Cisco Identity Services Engine Software
Same vendor: Cisco
Same weakness: CWE-648