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CVE-2026-20161— Cisco ThousandEyes Enterprise Agent Arbitrary File Overwrite Vulnerability

CVSS 5.5 · Medium EPSS 0.01% · P2
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I. Basic Information for CVE-2026-20161

Vulnerability Information
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Vulnerability Title
Cisco ThousandEyes Enterprise Agent Arbitrary File Overwrite Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the CLI of Cisco ThousandEyes Enterprise Agent could allow an authenticated, local attacker with low privileges to overwrite arbitrary files on the local system of an affected device. This vulnerability is due to improper access controls on files that are on the local file system of an affected device. An attacker could exploit this vulnerability by placing a symbolic link in a specific location on the local file system. A successful exploit could allow the attacker to bypass file system permissions and overwrite arbitrary files on the affected device.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco ThousandEyes Enterprise Agent 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco ThousandEyes Enterprise Agent是美国思科（Cisco）公司的一个应用程序。提供了扩展的可视性、自动化的见解和无缝的工作流程。 Cisco ThousandEyes Enterprise Agent存在安全漏洞，该漏洞源于本地文件系统访问控制不当，可能导致具有低权限的经过身份验证的本地攻击者覆盖任意文件。
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 ThousandEyes Enterprise Agent Agent 5.0 -

II. Public POCs for CVE-2026-20161

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III. Intelligence Information for CVE-2026-20161

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IV. Related Vulnerabilities

Same vendor: Cisco
Same weakness: CWE-59

V. Comments for CVE-2026-20161

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