CVE-2025-21312: CWE-908: Use of Uninitialized Resource in Microsoft Windows 10 Version 1507
Windows Smart Card Reader Information Disclosure Vulnerability
AI Analysis
Technical Summary
This vulnerability (CVE-2025-21312) affects Windows 10 Version 1507 (build 10.0.10240.0) and is categorized under CWE-908 (Use of Uninitialized Resource). It involves the Windows Smart Card Reader component potentially disclosing information due to uninitialized resource usage. The CVSS 3.1 base score is 2.4, reflecting low impact primarily on confidentiality with no impact on integrity or availability. Microsoft has released an official fix for this vulnerability as documented in their security update guide.
Potential Impact
The vulnerability could allow an attacker with physical access (AV:P - adjacent) to gain limited information disclosure (C:L) without requiring privileges or user interaction. There is no impact on integrity or availability. The overall severity is low.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21312 to remediate this vulnerability.
CVE-2025-21312: CWE-908: Use of Uninitialized Resource in Microsoft Windows 10 Version 1507
Description
Windows Smart Card Reader Information Disclosure Vulnerability
CVSS v3.1
Score 2.4low
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2025-21312) affects Windows 10 Version 1507 (build 10.0.10240.0) and is categorized under CWE-908 (Use of Uninitialized Resource). It involves the Windows Smart Card Reader component potentially disclosing information due to uninitialized resource usage. The CVSS 3.1 base score is 2.4, reflecting low impact primarily on confidentiality with no impact on integrity or availability. Microsoft has released an official fix for this vulnerability as documented in their security update guide.
Potential Impact
The vulnerability could allow an attacker with physical access (AV:P - adjacent) to gain limited information disclosure (C:L) without requiring privileges or user interaction. There is no impact on integrity or availability. The overall severity is low.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21312 to remediate this vulnerability.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- microsoft
- Date Reserved
- 2024-12-10T23:54:12.953Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21312","vendor":"Microsoft"}]
Threat ID: 68c0bd519ed239a66badeba7
Added to database: 09/09/2025, 23:50:41 UTC
Last enriched: 06/10/2026, 09:53:07 UTC
Last updated: 09/10/2026, 19:36:49 UTC
Views: 146
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.