CVE-2021-21518: Dell Supportassist Client Promanage

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Dell SupportAssist Client for Consumer PCs versions 3.7.x, 3.6.x, 3.4.x, 3.3.x, Dell SupportAssist Client for Business PCs versions 2.0.x, 2.1.x, 2.2.x, and Dell SupportAssist Client ProManage 1.x contain a DLL injection vulnerability in the Costura Fody plugin. A local user with low privileges could potentially exploit this vulnerability, leading to the execution of arbitrary executable on the operating system with SYSTEM privileges.

Affected products

• Dell Supportassist Client Promanage: version 1.0 only
• Dell Supportassist For Business Pcs: version 2.0.0 only; version 2.1.0 only; version 2.2.0 only
• Dell Supportassist For Home Pcs: version 3.3.3 only; version 3.4.0 only; version 3.6.0 only; version 3.7.0 only

Published 2021-03-12. Last modified 2026-06-17.