Remediate CVE-2026-43284 on ZStack Cloud Hosts

Scenario

• Product: ZCF
• Components: ZCE-X, ZStack Cloud
• ZCE-X version: 5.2.x
• ZStack Cloud version: 4.8.x
• Trigger: A scan detects the privilege-escalation vulnerability CVE-2026-43284, requiring kernel-module remediation.

Symptoms

• The environment is affected by CVE-2026-43284.
• The vulnerability is related to esp4, esp6, and rxrpc kernel modules.
• Remediation permanently disables and unloads these modules.

Assessment