Severity
High
Analysis Summary
CVE-2025-54918 CVSS:8.8
Microsoft Windows could allow a remote authenticated attacker to gain elevated privileges on the system, caused by improper authentication in NTLM.
CVE-2025-55225 CVSS:6.5
Microsoft Windows could allow a remote attacker to obtain sensitive information, caused by out-of-bounds read in Routing and Remote Access Service (RRAS).
CVE-2025-54916 CVSS:7.8
Microsoft Windows could allow a local authenticated attacker to execute arbitrary code on the system, caused by stack-based buffer overflow in NTFS.
CVE-2025-55228 CVSS:7.8
Microsoft Windows could allow a local authenticated attacker to execute arbitrary code on the system, caused by concurrent execution using shared resource with improper synchronization ('race condition') in Win32K - GRFX.
Impact
- Code Execution
- Privilege Escalation
- Information Disclosure
Indicators of Compromise
CVE
CVE-2025-54918
CVE-2025-55225
CVE-2025-54916
CVE-2025-55228
Affected Vendors
- Microsoft
Affected Products
- Microsoft Windows Server 2016
- Microsoft Windows Server 2019
- Microsoft Windows Server 2012
- Microsoft Windows Server 2012 R2
- Microsoft Windows Server 2022
- Microsoft Windows Server 2019 (Server Core installation)
- Microsoft Windows Server 2012 (Server Core installation)
- Microsoft Windows Server 2012 R2 (Server Core installation)
- Microsoft Windows Server 2016 (Server Core installation)
- Microsoft Windows 10 Version 1507
- Microsoft Windows 11 version 22H2
- Microsoft Windows 10 Version 1809
- Microsoft Windows 11 version 22H3
- Microsoft Windows 11 Version 23H2
- Microsoft Windows Server 2022 - 23H2 Edition (Server Core installation)
- Microsoft Windows 10 Version 21H2
- Microsoft Windows 10 Version 22H2
- Microsoft Windows 10 Version 1607
Remediation
Use Microsoft Automatic Update to apply the appropriate patch for your system, or the Microsoft Security Update Guide to search for available patches.