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CVE-2025-20259— Cisco ThousandEyes Endpoint Agent for Windows Arbitrary File Write Vulnerability

Quick assessment

Affected
Cisco Cisco ThousandEyes Endpoint Agent
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cisco ThousandEyes Endpoint Agent是美国思科（Cisco）公司的一个端点代理程序。 Cisco ThousandEyes Endpoint Agent存在路径遍历漏洞，该漏洞源于文件访问控制不当，可能导致删除任意文件。

CVSS 5.3 · Medium EPSS 0.16% · P4
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I. Basic Information for CVE-2025-20259

Vulnerability Information
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Vulnerability Title
Cisco ThousandEyes Endpoint Agent for Windows Arbitrary File Write Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Multiple vulnerabilities in the update process of Cisco ThousandEyes Endpoint Agent for Windows could allow an authenticated, local attacker to delete arbitrary files on an affected device. These vulnerabilities are due to improper access controls on files that are in the local file system. An attacker could exploit these vulnerabilities by using a symbolic link to perform an agent upgrade that redirects the delete operation of any protected file. A successful exploit could allow the attacker to delete arbitrary files from the file system of the affected device.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco ThousandEyes Endpoint Agent 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco ThousandEyes Endpoint Agent是美国思科（Cisco）公司的一个端点代理程序。 Cisco ThousandEyes Endpoint Agent存在路径遍历漏洞，该漏洞源于文件访问控制不当，可能导致删除任意文件。
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

Vendor Product Affected Versions CPE Subscribe
Cisco Cisco ThousandEyes Endpoint Agent N/A -

II. Public POCs for CVE-2025-20259

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III. Intelligence Information for CVE-2025-20259

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IV. Related Vulnerabilities

Same product: Cisco ThousandEyes Endpoint Agent
Same vendor: Cisco
Same weakness: CWE-22

V. Comments for CVE-2025-20259

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