Microsoft patched multiple Windows elevation-of-privilege flaws in kernel components
Microsoft disclosed and patched several Windows elevation-of-privilege vulnerabilities affecting core operating system components, including Windows Secure Kernel Mode, the Windows kernel, and NTFS. The issues were tracked as CVE-2024-43646, CVE-2025-21325, CVE-2025-49678, and CVE-2025-59207, and were published through the Microsoft Security Response Center's Security Update Guide.
The vulnerabilities span privileged parts of Windows that, if exploited, could allow an attacker to gain higher permissions on a compromised system. The affected areas include secure kernel functionality, general kernel operations, and the NTFS file system, underscoring continued risk from local privilege-escalation bugs in foundational Windows components and the importance of applying Microsoft security updates promptly.
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How this story unfolded
4 events from the most recent confirmed update back to the earliest known activity.
Microsoft publishes advisory for CVE-2025-59207
Microsoft released a Security Update Guide entry for CVE-2025-59207, a Windows Kernel Elevation of Privilege vulnerability.
Microsoft publishes advisory for CVE-2025-49678
Microsoft released a Security Update Guide entry for CVE-2025-49678, an NTFS Elevation of Privilege vulnerability.
Microsoft publishes advisory for CVE-2025-21325
Microsoft released a Security Update Guide entry for CVE-2025-21325, a Windows Secure Kernel Mode Elevation of Privilege vulnerability.
Microsoft publishes advisory for CVE-2024-43646
Microsoft released a Security Update Guide entry for CVE-2024-43646, a Windows Secure Kernel Mode Elevation of Privilege vulnerability.
Sources
4 references tracked. Mallory keeps watching after this page renders.
CVE-2025-59207 - Security Update Guide - Microsoft - Windows Kernel Elevation of Privilege Vulnerability
msrc.microsoft.com
Open sourceCVE-2025-49678 - Security Update Guide - Microsoft - NTFS Elevation of Privilege Vulnerability
msrc.microsoft.com
Open sourceCVE-2025-21325 - Security Update Guide - Microsoft - Windows Secure Kernel Mode Elevation of Privilege Vulnerability
msrc.microsoft.com
Open sourceCVE-2024-43646 - Security Update Guide - Microsoft - Windows Secure Kernel Mode Elevation of Privilege Vulnerability
msrc.microsoft.com
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