CVE-2026-20161
MEDIUMCisco ThousandEyes Enterprise Agent Arbitrary File Overwrite Vulnerability
Title source: cnaDescription
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.
Scores
CVSS v3
5.5
EPSS
0.0001
EPSS Percentile
1.6%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-59
Status
published
Products (9)
Cisco/Cisco ThousandEyes Enterprise Agent
Agent 4.0
Cisco/Cisco ThousandEyes Enterprise Agent
Agent 4.1
Cisco/Cisco ThousandEyes Enterprise Agent
Agent 4.2
Cisco/Cisco ThousandEyes Enterprise Agent
Agent 4.4.2
Cisco/Cisco ThousandEyes Enterprise Agent
Agent 4.4.3
Cisco/Cisco ThousandEyes Enterprise Agent
Agent 4.4.4
Cisco/Cisco ThousandEyes Enterprise Agent
Agent 5.0
Cisco/Cisco ThousandEyes Enterprise Agent
Agent 5.1
Cisco/Cisco ThousandEyes Enterprise Agent
Agent 5.1.2
Published
Apr 15, 2026
Tracked Since
Apr 15, 2026