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TI-2025-14557 Aliases CVE-2025-20259GHSA-cxp3-3gvr-5g69

Cisco ThousandEyes Endpoint Agent for Windows Arbitrary File Write Vulnerability

Priority LOW 23CWE-22Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00169 6th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco ThousandEyes Endpoint AgentN/A—No fix listedCNA
  • Cisco ThousandEyes Endpoint Agent VendorCisco Affected N/A Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:cisco:thousandeyes_endpoint_agent:*:*:*:*:*:*:*:*before 2.3.3VulnerableCisco
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
  • cpe:2.3:a:cisco:thousandeyes_endpoint_agent:*:*:*:*:*:*:*:* Versions before 2.3.3 Vulnerable ·Cisco
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-20259
  2. 2026-10-03 Alias added: GHSA-cxp3-3gvr-5g69

References

  • TI-2025-14427 Cisco ThousandEyes Endpoint Agent Certificate Validation Vulnerability CVSS 3.1MEDIUM 4.8

Sources