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CVE-2026-20146— Cisco Identity Services Engine Path Traversal Vulnerability

CVSS 5.5 · Medium EPSS 0.48% · P38

Affected Version Matrix 47

VendorProductVersion RangeStatus
CiscoCisco Identity Services Engine Software3.1.0affected
3.1.0 p1affected
3.1.0 p3affected
3.1.0 p2affected
3.2.0affected
3.1.0 p4affected
3.1.0 p5affected
3.2.0 p1affected
… +34 more rows
CiscoCisco ISE Passive Identity Connector3.2.0affected
3.1.0affected
3.3.0affected
3.4.0affected
3.5.0affected
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I. Basic Information for CVE-2026-20146

Vulnerability Information
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Vulnerability Title
Cisco Identity Services Engine Path Traversal Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an authenticated, remote attacker to perform path traversal attacks on the underlying operating system to either read or delete arbitrary files. To exploit this vulnerability, the attacker must have valid administrative credentials.  This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected system. A successful exploit could allow the attacker to access sensitive files or delete arbitrary files on the affected system.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco Identity Services Engine Software 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco identity services engine software是美国Cisco公司的一套身份管理服务平台。 Cisco Identity Services Engine Software和Cisco ISE Passive Identity Connector存在路径遍历漏洞，该漏洞源于对用户提供输入的验证不当，可能导致经过身份验证的远程攻击者通过发送特制HTTP请求对底层操作系统进行路径遍历攻击，从而读取或删除任意文件。以下版本受到影响：3.1.0版本、3.1.0 p1版本、3.1.0
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
CiscoCisco Identity Services Engine Software 3.1.0 -
CiscoCisco ISE Passive Identity Connector 3.2.0 -

II. Public POCs for CVE-2026-20146

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III. Intelligence Information for CVE-2026-20146

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Vendor Advisories for CVE-2026-20146 (1)

Same Patch Batch · Cisco · 2026-07-15 · 7 CVEs total

CVE-2026-201508.8 HIGHCisco RoomOS Security Hardening Release - Access Control Vulnerabilities
CVE-2026-201568.1 HIGHCisco RoomOS Security Hardening Release - Buffer Management Vulnerabilities
CVE-2026-201877.5 HIGHCisco RoomOS Security Hardening Release - Exceptional Conditions Handling Vulnerabilities
CVE-2026-201587.5 HIGHCisco RoomOS Security Hardening Release - Resource Lifetime Management Vulnerabilities
CVE-2026-201537.5 HIGHCisco RoomOS Security Hardening Release - Input Validation Vulnerabilities
CVE-2026-201577.5 HIGHCisco RoomOS Security Hardening Release - Missing Encryption Vulnerabilities

IV. Related Vulnerabilities

Same product: Cisco Identity Services Engine Software
Same vendor: Cisco
Same weakness: CWE-22

V. Comments for CVE-2026-20146

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