CVE-2025-55698: DirectX Graphics Kernel Denial of Service Vulnerability

Overview

Severity

High (CVSS 7.7)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C

Category

Denial of Service

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2025-Oct

Released

2025-10-14

EPSS Score

0.18% (percentile: 39.1%)

Description

Null pointer dereference in Windows DirectX allows an authorized attacker to deny service over a network.

FAQ

According to the CVSS metric, a successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability? In this case, a successful attack could be performed from a low privilege Hyper-V guest. The attacker could traverse the guest's security boundary to cause denial of service on the Hyper-V host environment.

Affected Products (6)

Windows

• Windows 11 Version 25H2 for x64-based Systems
• Windows 11 Version 25H2 for ARM64-based Systems
• Windows Server 2025 (Server Core installation)
• Windows 11 Version 24H2 for ARM64-based Systems
• Windows 11 Version 24H2 for x64-based Systems
• Windows Server 2025

Security Updates (1)

• 5066835

Acknowledgments

cyanbamboo

Revision History

• 2025-10-14: Information published.