CVE-2025-48002: Critical Hyper-V Information Disclosure Vulnerability in Windows

Here’s a summary of CVE-2025-48002 based on the information you provided:

• CVE ID: CVE-2025-48002
• Component: Windows Hyper-V
• Type: Information Disclosure Vulnerability
• Technical Cause: Integer overflow or wraparound
• Attack Vector: Allows an authorized attacker to disclose information over an adjacent network (such as another VM on the same host).
• Source: Microsoft Security Update Guide

Key Details:​

• The vulnerability is caused by an integer overflow (or wraparound) condition in Hyper-V.
• An attacker who is authorized (i.e., they have some form of legitimate access, such as a tenant running a VM) can exploit this vulnerability.
• Exploitation could result in the disclosure of information—potentially sensitive—that would not otherwise be accessible from the attacker's VM.

What You Should Do:​

• Patch: Check for security updates and apply any fixes released by Microsoft.
• Monitor: Keep an eye on Microsoft’s security guidance and update bulletins for more technical details and mitigation steps as patches become available.
• Minimize Attack Surface: Restrict Hyper-V access to trusted individuals and networks.

If you have specific questions (e.g., about detection, mitigation, or exploitation details), let me know! If you’d like, I can also check recent Microsoft or security forums for further technical analysis or workarounds.

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Source: MSRC Security Update Guide - Microsoft Security Response Center