CVE-2021-21538: Dell IDRAC9 Firmware

Critical severity, CVSS 10.0. EPSS: 1.7% chance of exploitation in the next 30 days.

Dell EMC iDRAC9 versions 4.40.00.00 and later, but prior to 4.40.10.00, contain an improper authentication vulnerability. A remote unauthenticated attacker could potentially exploit this vulnerability to gain access to the virtual console.

Affected products

• Dell IDRAC9 Firmware: from 4.40.00.00, before 4.40.10.00 (fixed in 4.40.10.00)

Published 2021-07-29. Last modified 2026-06-17.