Physical information disclosure via uninitialized resource
Published Jan 14, 2025 · Updated Jun 9, 2026
Information disclosure in Microsoft Windows Smart Card Reader allows physically proximate attackers to read unintended memory data. Microsoft identifies use of an uninitialized resource in the Smart Card Reader component but has not published the specific object, buffer, or read path. Physical access to a smart-card reader is required, and the documented consequence is limited to confidentiality loss.
Summary
What happened
Information disclosure in Microsoft Windows Smart Card Reader allows physically proximate attackers to read unintended memory data. Microsoft identifies use of an uninitialized resource in the Smart Card Reader component but has not published the specific object, buffer, or read path. Physical access to a smart-card reader is required, and the documented consequence is limited to confidentiality loss.
The record
- CVE
- CVE-2025-21312
- Published
- Jan 14, 2025
- Updated
- Jun 9, 2026
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-908, T1005
- Attack vector
- physical
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 14, 2025CVE 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
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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 <10.0.10240.20890
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.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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