Guest-to-host information disclosure
Published Jul 12, 2022 · Updated Jul 8, 2025
Information disclosure in Hyper-V on affected Windows builds allows guest OS users to access data from the Hyper-V host. Microsoft has not published the vulnerable Hyper-V component or the operation that exposes host data. Exploitation requires low-privilege guest access, and the reported consequence is limited to host-data confidentiality.
Summary
What happened
Information disclosure in Hyper-V on affected Windows builds allows guest OS users to access data from the Hyper-V host. Microsoft has not published the vulnerable Hyper-V component or the operation that exposes host data. Exploitation requires low-privilege guest access, and the reported consequence is limited to host-data confidentiality.
The record
- CVE
- CVE-2022-30223
- Published
- Jul 12, 2022
- Updated
- Jul 8, 2025
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- Unavailable
- Attack vector
- adjacent
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 12, 2022CVE 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=10.0.10240.0 <10.0.10240.19360
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
No sourced classifications are available.
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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