CVE-2025-21321: CWE-532: Insertion of Sensitive Information into Log File in Microsoft Windows 10 Version 1507
Windows Kernel Memory Information Disclosure Vulnerability
AI Analysis
Technical Summary
CVE-2025-21321 is a vulnerability classified under CWE-532 (Insertion of Sensitive Information into Log File) affecting Windows 10 Version 1507 (build 10.0.10240.0). The flaw involves the Windows kernel improperly logging sensitive memory information, which could be accessed by an attacker with local privileges. The CVSS v3.1 base score is 5.5 (medium), with an attack vector of local access, low attack complexity, and requiring low privileges without user interaction. Microsoft has published an official fix for this vulnerability as indicated in their security advisory.
Potential Impact
The vulnerability allows an attacker with local privileges to gain access to sensitive kernel memory information through log files, potentially leading to information disclosure. 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 in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21321 to remediate this vulnerability.
CVE-2025-21321: CWE-532: Insertion of Sensitive Information into Log File in Microsoft Windows 10 Version 1507
Description
Windows Kernel Memory Information Disclosure Vulnerability
CVSS v3.1
Score 5.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-21321 is a vulnerability classified under CWE-532 (Insertion of Sensitive Information into Log File) affecting Windows 10 Version 1507 (build 10.0.10240.0). The flaw involves the Windows kernel improperly logging sensitive memory information, which could be accessed by an attacker with local privileges. The CVSS v3.1 base score is 5.5 (medium), with an attack vector of local access, low attack complexity, and requiring low privileges without user interaction. Microsoft has published an official fix for this vulnerability as indicated in their security advisory.
Potential Impact
The vulnerability allows an attacker with local privileges to gain access to sensitive kernel memory information through log files, potentially leading to information disclosure. 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 in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21321 to remediate this vulnerability.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- microsoft
- Date Reserved
- 2024-12-11T00:29:48.348Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21321","vendor":"Microsoft"}]
Threat ID: 68c0bd529ed239a66badebc9
Added to database: 09/09/2025, 23:50:42 UTC
Last enriched: 06/10/2026, 09:54:19 UTC
Last updated: 07/09/2026, 07:52:26 UTC
Views: 191
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