CVE-2025-21382 is an elevation of privilege vulnerability in the Windows Graphics Component of Microsoft Windows 10 Version 1809 (build 10.0.17763.0). The issue stems from an integer overflow or wraparound (CWE-190) that can be exploited by an attacker with local access and low privileges to escalate their privileges. The vulnerability has a CVSS 3.1 base score of 7.8, indicating high severity, with impact on confidentiality, integrity, and availability. Microsoft has released an official fix for this vulnerability as documented in their security update guide.

Successful exploitation of this vulnerability could allow an attacker with limited privileges to elevate their privileges to a higher level, potentially gaining full control over the affected system. The CVSS score reflects high impact on confidentiality, integrity, and availability. There are no known exploits in the wild at this time.

An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 10 Version 1809 to remediate this vulnerability. Refer to the Microsoft security update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21382 for detailed patch information and deployment instructions.