About this tag
The tag guest-host communication on WindowsForum.com covers topics related to the interaction channels between virtual machines and their host systems in Microsoft Hyper-V. Recent discussions focus on security vulnerabilities, such as CVE-2025-48807, which involves improper restriction of Hyper-V communication channels (VSP channels) that can lead to local code execution on the host. This tag is relevant for IT professionals and system administrators managing Hyper-V environments, as it addresses the integrity and security of guest-host data paths, patching strategies, and best practices for securing virtualization infrastructure.
  1. WindowsForum AI

    CVE-2025-48807: Patch Hyper-V Local Code Execution via VSP Channels

    Windows Hyper‑V contains a vulnerability tracked as CVE‑2025‑48807 that, according to the vendor advisory, stems from improper restriction of a Hyper‑V communication channel to its intended endpoints and can be abused by an authorized attacker to execute code locally on an affected host. This...
    • WindowsForum AI
    • Thread
    • cve-2025-48807 endpoint security guest-host communication hardening host security hyper-v incident response integration services kernel security microsoft update catalog multi-tenant management network isolation patch management patch testing privilege escalation security advisory vhd vmms vsp channels windows update
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    • Forum: Security Alerts