Stack-based buffer overflow in Microsoft Windows and Windows Server - CVE-2026-100216

Vulnerability details

The vulnerability allows a local user to escalate privileges to SYSTEM.

The vulnerability exists due to a stack-based buffer overflow in Windows Storage when the component is exploited locally. A local user can exploit the stack-based buffer overflow to escalate privileges to SYSTEM.

Successful exploitation requires a deep understanding of the system and depends on factors such as the environment, system configuration, and additional security measures. Successful exploitation is not guaranteed.

Affected software

How to mitigate CVE-2026-100216

External References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2026-100216
• https://support.microsoft.com/help/5126651

Related Security Bulletins

• Multiple vulnerabilities in Microsoft Windows