Hyper V Security
The latest Hyper V Security coverage — news, analysis, and updates from the WindowsNews.AI desk.
Critical Hyper-V CVE-2026-42972 Patched: Update Windows Hosts Now
Microsoft’s June 2026 Patch Tuesday delivered a critical security bulletin for Windows Hyper-V administrators. At the center of the rollout is CVE-2026-42972, an information disclosure...
Microsoft Confirms Critical Hyper-V RCE Vulnerability, Urges Immediate Patching
Microsoft has confirmed a critical remote code execution (RCE) vulnerability in Windows Hyper-V, tracked as CVE-2026-47652, and is urging customers to apply security updates released on June 9, 2026....
Hyper-V Guest-to-Host Escape: Patch Critical CVE-2026-40402 Now
Microsoft’s May 2026 Patch Tuesday landed with a critical security update that Hyper-V administrators cannot afford to ignore. CVE-2026-40402, a use-after-free vulnerability in the Windows Hyper-V...
Windows Hyper-V Bug Lets Guest VM Crash Host via TCP/IP DoS
Microsoft’s May 2026 Patch Tuesday landed with a particularly nasty surprise for Hyper-V administrators: a denial-of-service vulnerability in the Windows TCP/IP stack that can bleed from a guest...
CVE-2026-32149: Microsoft's High-Confidence Hyper-V RCE Vulnerability Demands Immediate Patching
Microsoft's CVE-2026-32149 advisory represents a critical security threat that demands immediate attention from all organizations running Hyper-V environments. The vulnerability, officially...
CVE-2026-26156: Microsoft's Low Confidence Metric for Hyper-V RCE Vulnerability Explained
Microsoft's security advisory for CVE-2026-26156 reveals a critical Hyper-V remote code execution vulnerability with an unusual twist: the company has assigned it a "low" confidence metric. This...
Microsoft Patches Critical Hyper-V RCE Flaw — Host Takeover Risk Confirmed
Microsoft has patched a severe remote code execution vulnerability in Windows Hyper-V that could allow an attacker controlling a guest virtual machine to seize complete control of the host server....
CVE-2026-21247: Patch Hyper-V Now — Microsoft Flags Critical Virtualization Flaw
Microsoft has published an advisory for CVE-2026-21247, a vulnerability in Windows Hyper-V that could let an attacker with access to a guest virtual machine escalate privileges or run malicious code...
CVE-2026-21248: Patch Hyper-V Now to Stop Guest-to-Host Takeover
Microsoft has issued an urgent security advisory for CVE-2026-21248, a critical remote code execution vulnerability in the Hyper‑V virtualization stack. The flaw, which can be triggered by a...