CVE-2025-62463: CWE-476: NULL Pointer Dereference in Microsoft Windows 10 Version 21H2
Null pointer dereference in Windows DirectX allows an authorized attacker to deny service locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2025-62463) is a null pointer dereference in the Windows DirectX subsystem on Windows 10 Version 21H2 (build 10.0.19044.0). It can be exploited by an authorized local user with low privileges to cause a denial of service condition, crashing or destabilizing the affected system. The CVSS 3.1 base score is 6.5, reflecting a medium severity primarily due to the local attack vector and impact limited to availability. No known exploits are reported in the wild. A patch is available from Microsoft to remediate this issue.
Potential Impact
Successful exploitation results in denial of service (system crash or instability) on affected Windows 10 Version 21H2 systems. There is no impact to confidentiality or integrity. The attacker must have local access with at least low privileges. No known active exploitation has been reported.
Mitigation Recommendations
A patch is available for this vulnerability. It is recommended to apply the official Microsoft update for Windows 10 Version 21H2 to remediate this issue. Since this is a local denial of service vulnerability, applying the patch will prevent exploitation. No additional mitigations are specifically required.
CVE-2025-62463: CWE-476: NULL Pointer Dereference in Microsoft Windows 10 Version 21H2
Description
Null pointer dereference in Windows DirectX allows an authorized attacker to deny service locally.
CVSS v3.1
Score 6.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2025-62463) is a null pointer dereference in the Windows DirectX subsystem on Windows 10 Version 21H2 (build 10.0.19044.0). It can be exploited by an authorized local user with low privileges to cause a denial of service condition, crashing or destabilizing the affected system. The CVSS 3.1 base score is 6.5, reflecting a medium severity primarily due to the local attack vector and impact limited to availability. No known exploits are reported in the wild. A patch is available from Microsoft to remediate this issue.
Potential Impact
Successful exploitation results in denial of service (system crash or instability) on affected Windows 10 Version 21H2 systems. There is no impact to confidentiality or integrity. The attacker must have local access with at least low privileges. No known active exploitation has been reported.
Mitigation Recommendations
A patch is available for this vulnerability. It is recommended to apply the official Microsoft update for Windows 10 Version 21H2 to remediate this issue. Since this is a local denial of service vulnerability, applying the patch will prevent exploitation. No additional mitigations are specifically required.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2025-10-14T18:24:58.484Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 693867e374ebaa3babaf6fea
Added to database: 12/09/2025, 18:18:11 UTC
Last enriched: 04/17/2026, 11:13:55 UTC
Last updated: 09/10/2026, 19:36:51 UTC
Views: 158
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