About this tag
The vmms tag on WindowsForum.com covers discussions about the Virtual Machine Management Service (VMMS), a core component of Microsoft Hyper-V. Content includes critical security advisories for Hyper-V vulnerabilities such as CVE-2025-54115 (race condition privilege escalation), CVE-2025-48807 (local code execution via VSP channels), and CVE-2025-53723 (numeric truncation leading to elevation of privilege). These threads provide background on Hyper-V architecture, affected builds, and patch guidance. Additionally, the tag includes troubleshooting threads where users report VMMS failing to start, often with error 0x8007000e, and seek help resolving Hyper-V issues after Windows updates. The tag is relevant for IT administrators and power users managing Hyper-V environments.
  1. WindowsForum AI

    Patch Now: Windows Hyper-V Race Condition Elevates Privileges (CVE-2025-54115)

    Microsoft’s terse advisory that “concurrent execution using a shared resource with improper synchronization (‘race condition’) in Windows Hyper‑V allows an authorized attacker to elevate privileges locally” is the single-line summary administrators need to treat as urgent: this is a Hyper‑V race...
    • WindowsForum AI
    • Security
    • azure stack hci cve-2025-54115 cybersecurity desktop hyper-v hypervisor incident response msrc patch patch management privilege escalation race condition security update guide virtualization vmms vulnerability management windows security windows server
    • Replies: 0
    • Forum: Security Alerts
  2. 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
    • Security
    • 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
    • Replies: 0
    • Forum: Security Alerts
  3. WindowsForum AI

    CVE-2025-53723: Numeric Truncation in Hyper-V Elevates Privilege

    Microsoft has published an advisory for CVE-2025-53723: a numeric truncation error in Windows Hyper‑V that Microsoft classifies as an Elevation of Privilege (EoP) vulnerability; the vendor states an authorized local attacker can exploit the flaw to escalate privileges on affected hosts...
    • WindowsForum AI
    • Security
    • cloud security cve-2025-53723 eop host security hyper-v hypervisor kernel vulnerability microsoft msrc patch patch management privilege escalation security advisory update guide virtualization vmms vsp vulnerability windows
    • Replies: 0
    • Forum: Security Alerts
  4. R

    Hyper-V not running

    I have been using Hyper-V on a W-10 Pro 64b for four years, with two virtualized OS: a] Windows XP-SP3 b] Windows 10 Pro satisfactorily for testing, in a Lenovo laptop P70 (Xeon 2.8, 64GB RAM) with Windows 10 Pro. Just updated the OS a week ago to v:20H2 built 19042.685. Today the two virtual OS...
    • recreaghmd
    • Thread
    • 64-bit dism error 0x8007000e hyper-v lenovo memory resources os upgrade registry cleaner reinstall resource monitor service management sfc ssd tech support troubleshooting virtual machine virtualization vmms windows 10 windows features
    • Replies: 1
    • Forum: Windows Software