Local sensitive-information disclosure
Published Jun 9, 2026 · Updated Jun 9, 2026
Information disclosure in Windows Shell on affected Windows builds allows local users to read sensitive information from the system. Microsoft has not disclosed the vulnerable Shell component, the sensitive data exposed, or the operation that returns it to an unauthorized local account. Exploitation requires low-privilege local access, needs no user interaction, and affects confidentiality only; no integrity or availability impact is reported.
Summary
What happened
Information disclosure in Windows Shell on affected Windows builds allows local users to read sensitive information from the system. Microsoft has not disclosed the vulnerable Shell component, the sensitive data exposed, or the operation that returns it to an unauthorized local account. Exploitation requires low-privilege local access, needs no user interaction, and affects confidentiality only; no integrity or availability impact is reported.
The record
- CVE
- CVE-2026-42906
- Published
- Jun 9, 2026
- Updated
- Jun 9, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2025 (Server Core installation)
- Classifications
- CWE-200
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 9, 2026CVE publishedPublication date reported by the CVE source.
- Jun 9, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.26100.0 <10.0.26100.32995
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
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo