CVE-2026-20161
Cisco ThousandEyes Enterprise Agent Arbitrary File Overwrite Vulnerability
Severity
Medium 5.5
CVSS 3.1
Exploited
Not listed
EPSS
0.001
3.0th percentile
Discovered by
Vendor
Vendor-published field
Published
Apr 15, 2026
Assigned by cisco
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.
Weakness: CWE-59
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco ThousandEyes | Network & Security Management | cna-assigner |
Vendor-reported products (1)
- Cisco · Cisco ThousandEyes Enterprise Agent