CVE-2021-34820: Aat Novus Management System

High severity, CVSS 7.5. EPSS: 4% chance of exploitation in the next 30 days.

Web Path Directory Traversal in the Novus HTTP Server. The Novus HTTP Server is affected by the Directory Traversal for Arbitrary File Access vulnerability. A remote, unauthenticated attacker using an HTTP GET request may be able to exploit this issue to access sensitive data. The issue was discovered in the NMS (Novus Management System) software through 1.51.2

Affected products

• Aat Novus Management System: up to and including 1.51.2

Published 2021-07-19. Last modified 2026-06-17.