CVE-2018-15137: Cela Link Clr-m20 Firmware

Critical severity, CVSS 9.8. EPSS: 18.2% chance of exploitation in the next 30 days.

CeLa Link CLR-M20 devices allow unauthorized users to upload any file (e.g., asp, aspx, cfm, html, jhtml, jsp, or shtml), which causes remote code execution as well. Because of the WebDAV feature, it is possible to upload arbitrary files by utilizing the PUT method.

Affected products

• Cela Link Clr-m20 Firmware: version 2.7.1.6 only

Published 2018-08-08. Last modified 2026-06-17.