Out-of-bounds read in Microsoft Windows and Windows Server - CVE-2026-96930

Vulnerability details

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in the Windows Universal Disk Format File System Driver (UDFS) when used locally. A local user can exploit the out-of-bounds read to disclose sensitive information from the heap memory of a privileged process running on the server.

Affected software

How to mitigate CVE-2026-96930

External References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2026-96930
• https://support.microsoft.com/help/5127648

Related Security Bulletins

• Multiple vulnerabilities in Microsoft Windows