Physical security bypass via retained sensitive data
Published Apr 14, 2026 · Updated Apr 14, 2026
Information exposure in Microsoft Windows Recovery Environment Agent allows physically proximate attackers to bypass a security feature. The agent fails to remove sensitive information before storage or transfer, but Microsoft has not disclosed the specific data, storage location, or operation involved. Physical access is required; successful exploitation exposes confidential information without altering data or interrupting service.
Summary
What happened
Information exposure in Microsoft Windows Recovery Environment Agent allows physically proximate attackers to bypass a security feature. The agent fails to remove sensitive information before storage or transfer, but Microsoft has not disclosed the specific data, storage location, or operation involved. Physical access is required; successful exploitation exposes confidential information without altering data or interrupting service.
The record
- CVE
- CVE-2026-20928
- Published
- Apr 14, 2026
- Updated
- Apr 14, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-212
- Attack vector
- physical
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 14, 2026CVE publishedPublication date reported by the CVE source.
- Apr 14, 2026Record 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=10.0.17763.0 <10.0.17763.8644
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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