VDB
CVE-2026-20161
CVE-2026-20161
PUBLISHED
CVSS 5.5 MEDIUM
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.
EPSS 0.01% · 1.9th percentile
Risk Scores
CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
EPSS Score
0.01%
1.9th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco ThousandEyes Enterprise Agent | Agent 4.4.4, Agent 4.2, Agent 4.1 |
Exploit Intelligence
- CIRCL seen: CVE-2026-20161 (circl-sighting)
- cisco-sa-te-agentfilewrite-tqUw3SMU (circl)
Timeline
- Apr 15, 2026 CVE Published
- Apr 15, 2026 CVE Updated
- Apr 15, 2026 PoC Published
- Apr 16, 2026 Security Advisory
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
- May 20, 2026 EPSS Score
- May 21, 2026 EPSS Score
- May 22, 2026 EPSS Score
- May 23, 2026 EPSS Score
- May 24, 2026 EPSS Score
- May 25, 2026 EPSS Score