Remote service interruption via undisclosed VHDX race
Published Nov 12, 2024 · Updated Jul 8, 2025
Denial of service in Microsoft Virtual Hard Disk on affected Windows releases allows remote attackers to interrupt service. Microsoft has not disclosed the affected VHDX code path or unsafe operation, but states that exploitation requires winning a race condition. No authentication or user interaction is required, and successful exploitation causes availability loss without reported data disclosure or modification.
Summary
What happened
Denial of service in Microsoft Virtual Hard Disk on affected Windows releases allows remote attackers to interrupt service. Microsoft has not disclosed the affected VHDX code path or unsafe operation, but states that exploitation requires winning a race condition. No authentication or user interaction is required, and successful exploitation causes availability loss without reported data disclosure or modification.
The record
- CVE
- CVE-2024-38264
- Published
- Nov 12, 2024
- Updated
- Jul 8, 2025
- Vendor
- Microsoft
- Product
- Windows Server 2025 (Server Core installation)
- Classifications
- CWE-591, T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 12, 2024CVE publishedPublication date reported by the CVE source.
- Jul 8, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.26100.0 <10.0.26100.2314
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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