CVE intelligence and bounded remediation

CVE-2021-33126 — Intel Ethernet Controller Xxv710 Firmware security vulnerability

Medium CVSS 4.4

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.

Severity
Medium
CVSS
4.4 (3.1)
Published
2022-08-18
CISA KEV
Not currently listed
Ecosystem
operating-system

Affected products

  • intel / ethernet_controller_xxv710_firmware
  • intel / ethernet_controller_xl710_firmware
  • intel / ethernet_controller_v710_firmware
  • intel / ethernet_controller_x710_firmware
  • intel / ethernet_network_adapter_x722da2_firmware
  • intel / ethernet_network_adapter_x722da4fh_firmware

Showing 6 representative product identities from 7 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Resource exhaustion and denial of service

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Identify attacker-influenced work factors including input size, nesting, compression, fan-out, regex cost, allocation, recursion, retries, and connection lifetime.
  • Map per-request and shared CPU, memory, disk, descriptor, thread, queue, and downstream-service limits.
  • Determine whether authentication, tenancy, quotas, and rate controls apply before expensive processing begins.

Remediate safely

  • Bound input size, nesting, expansion, work, concurrency, queue depth, retries, and execution time before resource-intensive processing.
  • Release resources on every success, error, cancellation, and timeout path and use backpressure instead of unbounded buffering.
  • Update affected components and add small deterministic tests that assert resource ceilings rather than exhausting a host.

Authoritative sources

Complete CVE record and remediation plan

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