CVE-2021-21518

HIGH 7.8CVE-2021-21518 · Published 12/03/2021 · updated 17/06/2026

In short

CVE-2021-21518 is a HIGH (CVSS 7.8) vulnerability affecting supportassist client promanage (dell), supportassist for business pcs (dell), supportassist for home pcs (dell).
Chance of exploitation in the next 30 days (EPSS): 0.35%, higher than 28.9% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
supportassist client promanage dell	`= 1.0`	No fix yet
supportassist for business pcs dell	`= 2.0.0= 2.1.0= 2.2.0`	No fix yet
supportassist for home pcs dell	`= 3.3.3= 3.4.0= 3.6.0= 3.7.0`	No fix yet

Description

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.

References

dell.com/support/kbdoc/en-us/000184012/dsa-2021-052-dell-supportassist-for-home-pcs-business-pcs-security-update-for-pc-doctor-plugin-vulnerability · Vendor Advisory

Running one of these products? Scan your site to see whether it exposes a vulnerable version.

Scan my site free