CVE-2021-21541: Dell IDRAC9 Firmware

Medium severity, CVSS 6.1. EPSS: 0.8% chance of exploitation in the next 30 days.

Dell EMC iDRAC9 versions prior to 4.40.00.00 contain a DOM-based cross-site scripting vulnerability. A remote unauthenticated attacker could potentially exploit this vulnerability by tricking a victim application user to supply malicious HTML or JavaScript code to DOM environment in the browser. The malicious code is then executed by the web browser in the context of the vulnerable web 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.