CVE-2021-33126: Intel Ethernet Controller v710 Firmware

Medium severity, CVSS 4.4. EPSS: 0.2% chance of exploitation in the next 30 days.

Improper access control in the firmware for some Intel(R) 700 and 722 Series Ethernet Controllers and Adapters before versions 8.5 and 1.5.5 may allow a privileged user to potentially enable denial of service via local access.

Affected products

• Intel Ethernet Controller v710 Firmware: before 8.5 (fixed in 8.5)
• Intel Ethernet Controller x710 Firmware: before 8.5 (fixed in 8.5)
• Intel Ethernet Controller XL710 Firmware: before 8.5 (fixed in 8.5)
• Intel Ethernet Controller XXV710 Firmware: before 8.5 (fixed in 8.5)
• Intel Ethernet Network Adapter x722da2 Firmware: before 1.5.5 (fixed in 1.5.5)
• Intel Ethernet Network Adapter x722da4fh Firmware: before 1.5.5 (fixed in 1.5.5)
• Intel Ethernet Network Adapter x722da4g1p5 Firmware: before 1.5.5 (fixed in 1.5.5)

Published 2022-08-18. Last modified 2026-06-17.