CVE-2021-36321: Dell x1008 Firmware

High severity, CVSS 7.5. EPSS: 1.3% chance of exploitation in the next 30 days.

Dell Networking X-Series firmware versions prior to 3.0.1.8 contain an improper input validation vulnerability. A remote unauthenticated attacker may potentially exploit this vulnerability by sending specially crafted data to trigger a denial of service.

Affected products

• Dell x1008 Firmware: before 3.0.1.8 (fixed in 3.0.1.8)
• Dell x1008p Firmware: before 3.0.1.8 (fixed in 3.0.1.8)
• Dell x1018 Firmware: before 3.0.1.8 (fixed in 3.0.1.8)
• Dell x1018p Firmware: before 3.0.1.8 (fixed in 3.0.1.8)
• Dell x1026 Firmware: before 3.0.1.8 (fixed in 3.0.1.8)
• Dell x1026p Firmware: before 3.0.1.8 (fixed in 3.0.1.8)
• Dell x1052 Firmware: before 3.0.1.8 (fixed in 3.0.1.8)
• Dell x1052p Firmware: before 3.0.1.8 (fixed in 3.0.1.8)
• Dell x4012 Firmware: before 3.0.1.8 (fixed in 3.0.1.8)

Published 2021-11-20. Last modified 2026-06-17.