CVE-2026-20147— Cisco Identity Services Engine Remote Code Execution Vulnerability

Cisco Identity Services Engine Remote Code Execution Vulnerability

A vulnerability in Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to execute arbitrary commands on the underlying operating system of an affected device. To exploit this vulnerability, the attacker must have valid administrative credentials. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to obtain user-level access to the underlying operating system and then elevate privileges to root. In single-node ISE deployments, successful exploitation of this vulnerability could cause the affected ISE node to become unavailable, resulting in a denial of service (DoS) condition. In that condition, endpoints that have not already authenticated would be unable to access the network until the node is restored.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

在命令中使用的特殊元素转义处理不恰当(命令注入)

Cisco ISE和Cisco ISE-PIC 安全漏洞

Cisco ISE和Cisco ISE-PIC都是美国思科（Cisco）公司的产品。Cisco ISE是一个 NAC 解决方案。用于管理零信任架构中的端点、用户和设备对网络资源的访问。Cisco ISE-PIC是一个组件。 Cisco ISE和Cisco ISE-PIC存在安全漏洞，该漏洞源于用户输入验证不足，可能导致经过身份验证的远程攻击者执行任意命令，并可能导致拒绝服务。

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