CVE-2021-21511: Dell Emc Avamar Server

High severity, CVSS 8.1. EPSS: 1% chance of exploitation in the next 30 days.

Dell EMC Avamar Server, versions 19.3 and 19.4 contain an Improper Authorization vulnerability in the web UI. A remote low privileged attacker could potentially exploit this vulnerability, to gain unauthorized read or modification access to other users' backup data.

Affected products

• Dell Emc Avamar Server: version 19.3 only; version 19.4 only
• Dell Emc Integrated Data Protection Appliance: version 2.6 only

Published 2021-02-15. Last modified 2026-06-17.