CVE-2025-21255: CWE-125: Out-of-bounds Read in Microsoft Windows 10 Version 1507
Windows Digital Media Elevation of Privilege Vulnerability
AI Analysis
Technical Summary
CVE-2025-21255 is a CWE-125 out-of-bounds read vulnerability affecting Windows 10 Version 1507 (build 10.0.10240.0). It involves the Windows Digital Media component and can lead to elevation of privilege. The vulnerability has a CVSS v3.1 base score of 6.6, indicating medium severity, with high impact on confidentiality, integrity, and availability. Microsoft has released an official fix for this vulnerability as documented in their security update guide.
Potential Impact
Successful exploitation of this vulnerability could allow a local attacker with low privileges to read memory outside the intended bounds, potentially leading to elevation of privilege. The CVSS score reflects high impact on confidentiality, integrity, and availability, meaning an attacker could gain unauthorized access and control over affected systems.
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-2025-21255 to remediate this vulnerability.
CVE-2025-21255: CWE-125: Out-of-bounds Read in Microsoft Windows 10 Version 1507
Description
Windows Digital Media Elevation of Privilege Vulnerability
CVSS v3.1
Score 6.6medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-21255 is a CWE-125 out-of-bounds read vulnerability affecting Windows 10 Version 1507 (build 10.0.10240.0). It involves the Windows Digital Media component and can lead to elevation of privilege. The vulnerability has a CVSS v3.1 base score of 6.6, indicating medium severity, with high impact on confidentiality, integrity, and availability. Microsoft has released an official fix for this vulnerability as documented in their security update guide.
Potential Impact
Successful exploitation of this vulnerability could allow a local attacker with low privileges to read memory outside the intended bounds, potentially leading to elevation of privilege. The CVSS score reflects high impact on confidentiality, integrity, and availability, meaning an attacker could gain unauthorized access and control over affected systems.
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-2025-21255 to remediate this vulnerability.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- microsoft
- Date Reserved
- 2024-12-10T23:54:12.932Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21255","vendor":"Microsoft"}]
Threat ID: 68c0bd4e9ed239a66badead6
Added to database: 09/09/2025, 23:50:38 UTC
Last enriched: 06/10/2026, 09:46:35 UTC
Last updated: 09/10/2026, 19:36:49 UTC
Views: 107
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