CVE-2026-42486
Description
A flaw was found in Xen. A virtual machine administrator (vm-admin) can set the VM.platform:hvm_serial parameter, which should be restricted to the pool-admin role. This improper restriction allows the vm-admin to perform arbitrary file writes in dom0, potentially leading to system compromise.
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
Understanding the Weakness (CWE)
Access Control
Technical Impact: Gain Privileges or Assume Identity
A user can access restricted functionality and/or sensitive information that may include administrative functionality and user accounts.
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