CVE-2020-15338: Zyxel Cloudcnm Secumanager

Medium severity, CVSS 5.3. EPSS: 0.8% chance of exploitation in the next 30 days.

Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 has a "Use of GET Request Method With Sensitive Query Strings" issue for /cnr requests.

Affected products

• Zyxel Cloudcnm Secumanager: version 3.1.0 only; version 3.1.1 only

Published 2022-09-29. Last modified 2026-06-17.