What’s Vulnerable › Vulnerabilities
CVE-2025-20259: Cisco ThousandEyes Endpoint Agent for Windows Arbitrary File Write Vulnerability
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-06-04 · updated 2026-06-17
- Weakness: CWE-22
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.
Affected products
- Cisco ThousandEyes Endpoint Agent: before 2.3.3 — fixed in 2.3.3
How to fix
Upgrade to a fixed version: Cisco ThousandEyes Endpoint Agent 2.3.3. Check the vendor advisory for mitigations.
References
Get alerted when CVE-2025-20259 or the next vulnerability affects your stack