CVE-2021-21542: Dell IDRAC9 Firmware

Medium severity, CVSS 4.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Dell EMC iDRAC9 versions prior to 4.40.10.00 contain multiple stored cross-site scripting vulnerabilities. A remote authenticated malicious user with high privileges could potentially exploit these vulnerabilities to store malicious HTML or JavaScript code through multiple affected while generating a certificate. When victim users access the submitted data through their browsers, the malicious code gets executed by the web browser in the context of the vulnerable application.

Affected products

• Dell IDRAC9 Firmware: before 4.40.00.00 (fixed in 4.40.00.00)

Published 2021-04-30. Last modified 2026-06-17.