CVE-2025-21336: CWE-203: Observable Discrepancy in Microsoft Windows 10 Version 1507
Windows Cryptographic Information Disclosure Vulnerability
AI Analysis
Technical Summary
This vulnerability, tracked as CVE-2025-21336 and classified under CWE-203 (Observable Discrepancy), affects Windows 10 Version 1507 (build 10.0.10240.0). It allows an attacker with local access and low privileges to potentially disclose sensitive cryptographic information due to an observable discrepancy in the system. The vulnerability has a CVSS 3.1 base score of 5.6, indicating medium severity. Microsoft has published an official fix to remediate this issue.
Potential Impact
Successful exploitation could lead to disclosure of sensitive cryptographic information, potentially compromising confidentiality. The vulnerability requires local access with low privileges and has a high attack complexity. There is no impact on integrity or availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 10 Version 1507 (build 10.0.10240.0) as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21336.
CVE-2025-21336: CWE-203: Observable Discrepancy in Microsoft Windows 10 Version 1507
Description
Windows Cryptographic Information Disclosure Vulnerability
CVSS v3.1
Score 5.6medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, tracked as CVE-2025-21336 and classified under CWE-203 (Observable Discrepancy), affects Windows 10 Version 1507 (build 10.0.10240.0). It allows an attacker with local access and low privileges to potentially disclose sensitive cryptographic information due to an observable discrepancy in the system. The vulnerability has a CVSS 3.1 base score of 5.6, indicating medium severity. Microsoft has published an official fix to remediate this issue.
Potential Impact
Successful exploitation could lead to disclosure of sensitive cryptographic information, potentially compromising confidentiality. The vulnerability requires local access with low privileges and has a high attack complexity. There is no impact on integrity or availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 10 Version 1507 (build 10.0.10240.0) as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21336.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- microsoft
- Date Reserved
- 2024-12-11T00:29:48.352Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21336","vendor":"Microsoft"}]
Threat ID: 68c0c0d09ed239a66badfd1d
Added to database: 09/10/2025, 00:05:36 UTC
Last enriched: 06/10/2026, 09:56:29 UTC
Last updated: 07/09/2026, 07:52:26 UTC
Views: 420
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