Windows 10 Version 21H2

Privilege escalation in the Windows Netlogon service allows an already-authenticated, low-privileged network attacker to elevate to higher privileges by exploiting a use-after-free (CWE-416) memory-corruption condition. The flaw affects a broad range of Windows client and server releases from Windows 10 1607 and Windows Server 2012 through Windows 11 26H1 and Windows Server 2025, including Server Core installations. Reported by Microsoft with a vendor patch available; there is no public exploit identified at time of analysis and it is not listed in CISA KEV.

Elevation of privilege in the Windows Runtime (WinRT) component affects Windows 10 (21H2/22H2), Windows 11 (24H2/25H2/26H1), and Windows Server 2025, where a use-after-free memory-corruption flaw lets an already-authenticated local user run code at higher privilege. Microsoft has released a patch and reported the issue; there is no public exploit identified at time of analysis and the CVE is not listed in CISA KEV. Given the CVSS 7.8 (Important) rating and full C/I/A impact, this is a standard local privilege-escalation risk suited for regular patch prioritization rather than emergency response.

Denial of service in Windows Hyper-V allows an authorized, adjacent-network attacker to crash or disrupt the hypervisor by triggering a buffer over-read (CWE-126). Affected platforms span Windows 10, Windows 11, and Windows Server 2012 through 2025, covering a broad slice of Microsoft's enterprise footprint. No public exploit has been identified at time of analysis and the vulnerability is not listed in CISA KEV, but a vendor-issued patch is available via Microsoft MSRC.

Remote code execution in the Microsoft Windows Event Logging Service allows an authenticated attacker with low privileges to execute code over a network after enticing a user into an interaction (UI:R), due to insufficient granularity of access control (CWE-1220). The flaw affects a broad range of Windows client and server builds from Windows 10 1607 and Windows Server 2012 through Windows 11 26H1 and Windows Server 2025. Microsoft has released a patch; there is no public exploit identified at time of analysis and the CVE is not listed in CISA KEV.

Local privilege escalation in the Windows Graphics Kernel component allows an authenticated attacker to elevate to SYSTEM by triggering a use-after-free (CWE-416) memory-corruption condition. All currently supported Windows client and server builds are affected - from Windows 10 1809 through Windows 11 26H1 and Windows Server 2019 through 2025. No public exploit identified at time of analysis; Microsoft has released a patch, and the CVSS 7.8 (Important) rating reflects high impact but a local-access, low-privilege prerequisite.

Local privilege escalation in the Microsoft Windows Kernel lets an already-authenticated attacker corrupt heap memory to gain SYSTEM-level control across Windows 10 (1809/21H2/22H2), Windows 11 (24H2/25H2/26H1), and Windows Server 2019/2022/2025. The CVSS 7.8 (AV:L/PR:L) rating reflects that low-privileged code execution is a prerequisite; there is no public exploit identified at time of analysis, but Microsoft has released a patch. This is a classic post-exploitation escalation primitive rather than an initial-access vector.

Local tampering in Windows DNS via improper access control (CWE-284) allows a low-privilege authenticated local user to manipulate DNS configuration or records across a broad range of Windows 10, Windows 11, and Windows Server releases. The CVSS vector (AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L) confirms exploitation requires only a valid local account with no elevated privileges, yielding high integrity impact with minimal availability disruption and no direct confidentiality exposure. No public exploit code or CISA KEV listing has been identified at time of analysis, but the 'Authentication Bypass' advisory tag suggests DNS tampering may enable downstream bypass of authentication mechanisms dependent on DNS resolution, potentially amplifying the effective impact beyond the raw CVSS score.

Local privilege-level code execution in the Windows NTFS file-system driver affects a broad range of Windows client and server releases, from Windows 10 1607 and Server 2012 through Windows 11 26H1 and Server 2025. A heap-based buffer overflow (CWE-122) lets an authorized local attacker who can induce a user to interact with a crafted file or volume execute arbitrary code in the security context of the kernel-mode NTFS component. There is no public exploit identified at time of analysis and it is not in CISA KEV, but Microsoft has released a patch and the flaw carries full high confidentiality, integrity, and availability impact.

Local privilege escalation in the Microsoft Windows USB Hub Driver allows an authenticated low-privileged user to elevate to SYSTEM by triggering an untrusted pointer dereference (CWE-822), affecting Windows 10 (1809/21H2/22H2) and Windows Server 2019 through 2025. Successful exploitation yields full confidentiality, integrity, and availability impact on the local host. There is no public exploit identified at time of analysis and the flaw is not listed in CISA KEV, but Microsoft has released a patch.

Local privilege escalation in the Microsoft Windows Kernel lets an authenticated attacker who already has low-privileged code execution on a host elevate to SYSTEM by exploiting a use-after-free (CWE-416) memory corruption. It affects a broad range of supported Windows client and server builds - Windows 10 (1809/21H2/22H2), Windows 11 (24H2/25H2/26H1), and Windows Server 2019/2022/2025 - and Microsoft has released a patch. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, so exploitation appears unproven publicly despite the reliably-exploitable nature of kernel UAF flaws.

Local privilege escalation in the Microsoft Windows Kernel lets an already-authenticated attacker corrupt heap memory (CWE-122) to run code with SYSTEM-level privileges. It affects a broad range of supported Windows client and server releases (Windows 10 1607 through Windows 11 26H1, and Windows Server 2012 through Server 2025). No public exploit identified at time of analysis, but the CVSS 8.8 rating and scope change make it a strong candidate for chaining after initial access.

Local privilege escalation in the Microsoft Windows Kernel arises from a use-after-free (CWE-416) memory-corruption flaw that lets an attacker running code on the machine gain higher privileges, potentially SYSTEM. It affects a broad range of current Windows client and server builds (Windows 10 21H2/22H2, Windows 11 24H2/25H2/26H1, Windows Server 2022/2025). No public exploit identified at time of analysis, but the local attack surface and full CIA impact make it a standard Patch-Tuesday-class kernel EoP worth prompt patching.

Information disclosure in the Windows Network Policy Server (NPS) SNMP component allows a remote, unauthenticated attacker to read out-of-bounds memory over the network and disclose sensitive process data. The flaw affects a broad range of Windows client and server releases, from Windows 10 1607 and Windows Server 2012 through Windows 11 26H1 and Windows Server 2025. It was reported by Microsoft, a vendor patch is available, and no public exploit has been identified at time of analysis (not listed in CISA KEV).

Local privilege escalation in the Windows Backup Engine affects Windows 10 (21H2, 22H2) and Windows 11 (24H2, 25H2, 26H1), where a use-after-free (CWE-416) memory-corruption flaw lets an already-authorized local user with low privileges elevate to higher rights. No public exploit identified at time of analysis, and it is not listed in CISA KEV; Microsoft rates it 7.0 (High), reflecting meaningful impact tempered by high attack complexity. Successful exploitation grants full confidentiality, integrity, and availability impact on the affected host.

Local privilege escalation in the Windows Wireless Wide Area Network (WWAN) Service allows a low-privileged authenticated user to win a race condition and gain SYSTEM-level privileges across Windows 10, Windows 11, and Windows Server 2019 through 2025. The flaw stems from improper synchronization of a shared resource (CWE-362), and the scope-changed CVSS impact (S:C) reflects that successful exploitation crosses from the attacker's low-privilege context into a higher-privileged service. No public exploit identified at time of analysis, and it is not listed in CISA KEV, though Microsoft credits itself as the reporter, indicating internal discovery.

Remote information disclosure in the Microsoft Windows Kernel (CWE-125 out-of-bounds read) lets an unauthenticated attacker read kernel memory over a network, per the CVSS AV:N/PR:N vector, affecting a broad range of Windows 10, Windows 11, and Windows Server 2016 through 2025 builds. The flaw carries high confidentiality impact (C:H) with a minor availability side effect and no integrity impact, scoring CVSS 8.2. No public exploit is identified at time of analysis and it is not in CISA KEV, but the network-reachable, no-authentication, no-interaction profile makes it a notable patch priority.

Local privilege escalation in Microsoft Windows (Windows 10 1607 through Windows 11 26H1 and Windows Server 2012 through 2025) arises from a use-after-free memory-corruption flaw (CWE-416) that lets an already-authenticated local user run code at elevated privilege. The CVSS 3.1 base score is 7.8 with a scope-changed vector, and Microsoft has shipped a fix via MSRC. There is no public exploit identified at time of analysis and the issue is not listed in CISA KEV, so exploitation is currently theoretical rather than observed.

Buffer over-read in Windows Kernel allows an authorized attacker to disclose information locally.

Exposure of sensitive information to an unauthorized actor in Windows Media allows an unauthorized attacker to disclose information over a network.

Exposure of sensitive information to an unauthorized actor in Windows Media allows an authorized attacker to disclose information locally.

Denial of service in Microsoft Active Directory Federation Services (AD FS) allows a remote, unauthenticated attacker to crash the service by sending crafted network input that overflows a stack buffer (CWE-121). Because AD FS commonly fronts single sign-on for Microsoft 365, Azure AD, and federated web applications, an outage cascades into loss of authentication for every relying-party application. There is no public exploit identified at time of analysis and the flaw is not in CISA KEV; a Microsoft patch is available, and the CVSS 3.1 score is 7.5 (availability-only impact).

Remote code execution in Microsoft's Remote Desktop Client (the RDP client, mstsc.exe, shipped across Windows 10, Windows 11, and Windows Server 2012 through 2025) allows an unauthorized attacker to run arbitrary code over the network by triggering a use-after-free memory-corruption condition. Exploitation requires the victim to connect to an attacker-controlled or compromised RDP endpoint (UI:R), after which the malicious server can corrupt client-side memory to achieve full code execution. There is no public exploit identified at time of analysis and the CVE is not listed in CISA KEV; a vendor patch is available from Microsoft.

Local code execution in Microsoft Windows' Resilient File System (ReFS) driver lets an unauthorized attacker run arbitrary code by inducing a victim to mount or open a maliciously crafted ReFS volume (CVE-2026-50362). The flaw affects the ReFS component shipped across Windows 10, Windows 11 (through 26H1), and Windows Server 2016-2025, carries CVSS 7.8, and requires user interaction (UI:R) with no prior authentication (PR:N). Microsoft has released a patch; there is no public exploit identified at time of analysis and it is not listed in CISA KEV.

Remote code execution in Microsoft Windows Message Queuing (MSMQ) allows an unauthenticated attacker to run arbitrary code over the network by corrupting heap memory. The flaw (CWE-122) carries a CVSS 9.8 and affects a broad range of client and server SKUs from Windows 10 1607 through Windows 11 26H1 and Windows Server 2012 through Server 2025. No public exploit is identified at time of analysis, but the network-reachable, no-interaction, no-privilege profile of prior MSMQ bugs (e.g. the 'QueueJumper' class) makes this a top-priority patch. Microsoft has released a fix.

Local privilege escalation to code execution in the Windows NTFS driver (CVE-2026-50417) allows an authenticated attacker with low privileges to corrupt heap memory and run arbitrary code on affected Windows 10, Windows 11, and Windows Server 2012 through 2025 systems. The flaw is a heap-based buffer overflow (CWE-122) reported by Microsoft, with CVSS 7.8 (High) reflecting local vector, low complexity, and full confidentiality/integrity/availability impact. No public exploit identified at time of analysis, and it is not listed in CISA KEV.

Out-of-bounds read in Windows USB Audio Class driver (usbaudio.sys) allows an unauthorized attacker to disclose information with a physical attack.

Windows Quality of Service (QoS) Packet Scheduler Information Disclosure Vulnerability

Local code execution in Microsoft Windows NTFS (New Technology File System) driver arises from a heap-based buffer overflow (CWE-122) that an attacker can trigger by inducing a user to interact with a specially crafted NTFS volume or file. Affecting a broad range of Windows client and server builds from Windows Server 2012/2012 R2 through Windows 11 26H1 and Windows Server 2025, successful exploitation yields high confidentiality, integrity, and availability impact. There is no public exploit identified at time of analysis and the issue is not listed in CISA KEV; Microsoft has issued a fix.

Local privilege escalation in the Microsoft Windows Kernel allows an authenticated low-privileged user to elevate to higher (likely SYSTEM-level) privileges by triggering an out-of-bounds read condition. The flaw affects a broad range of currently supported Windows client and server builds, from Windows 10 21H2 through Windows 11 26H1 and Windows Server 2022/2025. Microsoft has released a patch; there is no public exploit identified at time of analysis and the issue is not listed in CISA KEV.

Use after free in Windows Virtual Filtering Platform (VFP) allows an authorized attacker to deny service over a network.

Windows File Explorer on a wide range of Microsoft Windows client and server versions exposes sensitive information to locally authenticated standard users, achieving high confidentiality impact without requiring elevated privileges. The flaw (CWE-200) is confined to the local attack surface - CVSS AV:L/PR:L - meaning the attacker must already hold an interactive session on the target system. No public exploit code and no CISA KEV listing have been identified at time of analysis; a vendor patch is available through Microsoft Security Response Center.

Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.

Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.

Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.

Local privilege escalation in the Windows Runtime (WinRT) component of Windows 10, Windows 11, and Windows Server allows an authenticated attacker to run arbitrary code with elevated (SYSTEM-level) privileges by triggering a use-after-free memory-corruption condition (CWE-416). Microsoft has released a patch, but there is no public exploit identified at time of analysis and the flaw is not listed in CISA KEV. The CVSS 3.1 score of 7.8 (High) with a fully local vector reflects meaningful post-compromise impact but requires the attacker to already have a foothold on the host.

Local privilege escalation in the Windows Ancillary Function Driver for WinSock (AFD.sys) allows an already-authenticated local attacker to gain elevated (SYSTEM-level) privileges across a broad range of Windows client and server releases from Windows 10 1607 and Server 2012 through Windows 11 26H1 and Server 2025. Reported internally by Microsoft with a patch available, the flaw carries CVSS 7.8 with full confidentiality, integrity, and availability impact but no confirmed active exploitation; no public exploit identified at time of analysis.

Remote code execution in the Microsoft Message Queuing (MSMQ) Queue Manager affects a broad range of Windows client and server releases, from Windows 10 1607 and Windows Server 2012 through Windows 11 26H1 and Windows Server 2025. An unauthenticated network attacker who can reach the MSMQ service (TCP 1801) can trigger a use-after-free (CWE-416) in the Queue Manager to execute arbitrary code in the service context. There is no public exploit identified at time of analysis and the flaw is not listed in CISA KEV, but the high CVSS (8.1), network attack vector, and lack of any authentication requirement make patched deployment urgent; exploitation is tempered by the High attack complexity (AC:H).

Local privilege escalation in Microsoft Windows Resilient File System (ReFS) lets an authenticated local attacker gain elevated (SYSTEM-level) privileges by triggering an untrusted pointer dereference in the ReFS driver. It affects a broad range of Windows 10, Windows 11, and Windows Server 2016-2025 builds. Microsoft has released a patch; there is no public exploit identified at time of analysis and it is not listed in CISA KEV, so risk is currently patch-and-move rather than emergency.

Exposure of sensitive information to an unauthorized actor in Windows Overlay Filter allows an authorized attacker to disclose information locally.

Local privilege escalation in the Windows Overlay Filter (WOF) driver affects a broad range of Windows client and server releases, from Windows 10 1607 and Server 2012 R2 through Windows 11 26H1 and Server 2025. An authenticated local attacker with low privileges can trigger a buffer over-read (CWE-126) in the filter to elevate to higher privileges, gaining full confidentiality, integrity, and availability impact on the host. Microsoft has released a patch; there is no public exploit identified at time of analysis and the CVE is not listed in CISA KEV.

Local privilege escalation in the Windows NTFS file-system driver lets an authenticated low-privileged user gain elevated (likely SYSTEM) privileges by exploiting an incorrect conversion between numeric types (CWE-681). Affected platforms span Windows 10 (1607 through 22H2), Windows 11 (24H2, 25H2, 26H1), and Windows Server 2012 through 2025. Microsoft reported the flaw and has shipped a patch; there is no public exploit identified at time of analysis and it is not listed in CISA KEV.

Local information disclosure in Windows Universal Plug and Play (upnp.dll) exposes sensitive memory contents to authorized low-privilege users across a wide range of Windows 10, Windows 11, and Windows Server releases. The flaw stems from use of an uninitialized resource (CWE-908), meaning the UPnP service reads from memory that has not been properly initialized before use, potentially leaking stale heap or stack contents. No active exploitation has been confirmed and no public exploit code has been identified at time of analysis; a vendor patch is available via the Microsoft Security Response Center.

Local privilege escalation in Windows Routing and Remote Access Service (RRAS) allows a low-privileged authenticated user to elevate to higher privileges on affected Windows 10, Windows 11, and Windows Server 2012 through 2025 systems. The flaw stems from a missing authentication check on a critical RRAS function (CWE-306), letting an already-authorized local attacker invoke privileged functionality without proper authorization. Microsoft has released a patch; there is no public exploit identified at time of analysis.

Buffer over-read in Windows Print Spooler Components allows an authorized attacker to disclose information locally.

Local privilege escalation in the Windows Sensor Data Service allows an authenticated low-privileged user to gain full SYSTEM-level control on affected Windows 10, Windows 11, and Windows Server (2019-2025) systems. The flaw stems from incorrect access to an indexable resource (a range/bounds error, CWE-118) and yields high confidentiality, integrity, and availability impact per the CVSS 7.8 vector. No public exploit identified at time of analysis, and the issue is not listed in CISA KEV, but Microsoft has released a patch.

Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges with a physical attack.

Local privilege escalation in the Windows Connected User Experiences and Telemetry service (DiagTrack) lets an already-authenticated user run arbitrary code with SYSTEM-level rights by triggering a CWE-843 type-confusion condition. The flaw affects a broad range of currently-supported Windows client and server builds, from Windows 10 1607 through Windows 11 26H1 and Windows Server 2016 through 2025. Microsoft has released a patch; there is no public exploit identified at time of analysis and the CVE is not listed in CISA KEV.

Local privilege escalation in the Windows NTFS file-system driver lets an already-authenticated low-privileged user read memory outside allocated bounds (CWE-125) to gain elevated privileges. It affects a broad Windows fleet spanning Windows 10 (1607 through 22H2), Windows 11 (24H2, 25H2, 26H1), and Windows Server 2012 through 2025. Reported by Microsoft with a patch available; no public exploit identified at time of analysis and it is not listed in CISA KEV.

Local privilege escalation in the Microsoft Windows Content Delivery Manager component lets an authenticated low-privileged user elevate to SYSTEM by triggering a use-after-free (CWE-416) memory-corruption condition. The flaw affects a broad range of client and server builds (Windows 10 1809 through Windows 11 26H1, plus Server 2019 and Server 2025), and Microsoft has released a patch. There is no public exploit identified at time of analysis and it is not listed in CISA KEV.

Elevation of privilege in the Microsoft Windows RPC API lets an unauthenticated attacker on an adjacent network gain higher privileges by exploiting an improper authentication weakness (CWE-287), provided a user is lured into an interaction. The flaw spans a broad range of client and server builds from Windows Server 2012 through Windows Server 2025 and Windows 10 1607 through Windows 11 26H1. No public exploit identified at time of analysis; the issue was reported by Microsoft, which has released a fix.

Local privilege escalation in the Windows Projected File System (ProjFS) driver lets an authenticated low-privileged attacker abuse a symbolic-link/junction race (CWE-59 link following) to redirect a privileged file operation and gain SYSTEM-level rights across Windows 10 (1809-22H2), Windows 11 (24H2/25H2/26H1), and Windows Server 2019/2022/2025. Microsoft has released a patch; there is no public exploit identified at time of analysis and the flaw is not listed in CISA KEV.

Privilege escalation in Windows Remote Desktop Services (RDS) lets an authenticated, low-privileged attacker elevate to higher privileges across a network by triggering a use-after-free (CWE-416) memory-corruption condition in the RDS component. The flaw spans a broad range of supported Windows client and server releases (Windows 10/11 and Windows Server 2012 through 2025). Microsoft has released a patch; there is no public exploit identified at time of analysis and the issue is not listed in CISA KEV.

Local code execution in Microsoft Windows NTFS (the New Technology File System driver) arises from a heap-based buffer overflow that lets an attacker run arbitrary code with the privileges of the affected process. The flaw affects a broad swath of supported Windows client and server builds, from Windows 10 1607 and Server 2012 through Windows 11 26H1 and Server 2025. Microsoft (the reporter) has shipped a patch; there is no public exploit identified at time of analysis, and the CVSS vector requires local access plus user interaction, so it is a privilege-escalation/code-execution primitive rather than a remotely-wormable bug.

Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to disclose information locally.

Local code execution in the Windows DirectX graphics component (CVE-2026-50382) lets an already-authenticated user run arbitrary code and, because the CVSS scope is Changed, break out of the calling security context to compromise the wider system. It affects a broad range of Windows client and server builds from Windows 10 1809 through Windows 11 26H1 and Windows Server 2019 through 2025. Microsoft has issued a patch; there is no public exploit identified at time of analysis and the vulnerability is not listed in CISA KEV.

Exposure of sensitive information to an unauthorized actor in Windows Cryptographic Services allows an authorized attacker to disclose information locally.

Local privilege escalation in the Windows OLE (Object Linking and Embedding) component allows an already-authenticated, low-privileged user on affected Windows and Windows Server builds to elevate to higher privileges through an improper authorization check (CWE-285). Microsoft has released a patch, and no public exploit has been identified at time of analysis. Impact is high across confidentiality, integrity, and availability, though exploitation requires prior local code execution.

Buffer over-read in Windows RDP allows an unauthorized attacker to disclose information over a network.

Exposure of sensitive information to an unauthorized actor in Windows Notification allows an authorized attacker to disclose information locally.

Local privilege elevation in the Windows Graphics Device Interface (GDI) component allows an already-authenticated, low-privileged user to run code at a higher privilege level by triggering a stack-based buffer overflow (CWE-121). Affected platforms span Windows 10 (1607 through 22H2), Windows 11 (24H2/25H2/26H1), and Windows Server 2012 through 2025, including Server Core installations. Reported by Microsoft with a patch available; no public exploit identified at time of analysis and the CVE is not listed in CISA KEV.

Local code execution in the Microsoft Windows NTFS file-system driver lets an attacker run arbitrary code by triggering a heap-based buffer overflow (CWE-122) when Windows parses crafted file-system metadata. The flaw spans a broad range of supported releases, from Windows 10 1607 and Server 2012 through Windows 11 26H1 and Server 2025. It carries a CVSS 7.8 (Important) rating, requires user interaction, has a vendor patch available, and no public exploit identified at time of analysis.

Local privilege escalation in the Windows Filtering Platform (WFP) lets an authenticated low-privileged user gain higher privileges on affected Windows 10, Windows 11, and Windows Server systems (Server 2012 through Server 2025). Rooted in insufficient access-control granularity (CWE-1220), a local attacker with a valid session can manipulate WFP to reach SYSTEM-level access. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but Microsoft rates the confidentiality, integrity, and availability impact as High.

Local privilege escalation in the Microsoft Windows Kernel lets an already-authenticated attacker win a use-after-free race (CWE-416) to gain SYSTEM-level control, affecting a broad range of client and server builds from Windows 10 1607 and Windows Server 2012 through Windows 11 26H1 and Windows Server 2025. Microsoft has released a patch and there is no public exploit identified at time of analysis. The moderate 7.0 score reflects high attack complexity (a timing-dependent race) offset by full confidentiality, integrity and availability impact once triggered.

Use of uninitialized resource in Windows RDP allows an unauthorized attacker to disclose information over a network.

Local privilege escalation in the Microsoft Windows RPC Runtime lets an already-authenticated low-privileged user gain SYSTEM-level control due to improper authorization (CWE-285). Affecting a broad range of Windows client and server releases from Windows Server 2012 through Windows 11 26H1 and Server 2025, the flaw carries CVSS 7.8 with high confidentiality, integrity, and availability impact. Reported by Microsoft with a patch available; no public exploit identified at time of analysis and it is not listed in CISA KEV.

Out-of-bounds read in Windows Cloud Files Mini Filter Driver allows an authorized attacker to disclose information locally.

Local privilege escalation in Windows Key Guard affecting Windows 10 (1809/21H2/22H2), Windows 11 (24H2/25H2/26H1), and Windows Server 2019/2022/2025 allows an already-authenticated local attacker to win a race condition (CWE-362) and gain higher privileges. Reported by Microsoft with a patch now available; there is no public exploit identified at time of analysis and it is not listed in CISA KEV. The CVSS 7.8 rating reflects full confidentiality, integrity, and availability impact once the timing window is exploited.

Local privilege escalation in the Microsoft Windows Kernel allows an already-authenticated attacker to elevate to SYSTEM-level privileges across a wide range of Windows 10, Windows 11, and Windows Server builds. The flaw stems from improper access control (CWE-284) in kernel-mode code and requires local low-privileged access with no user interaction. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but the trivial attack complexity and SYSTEM-level impact make it a standard patch-Tuesday priority.

Local privilege escalation in the Windows Group Policy component allows an already-authenticated user to elevate to higher privileges (up to SYSTEM) on affected Windows 10, Windows 11, and Windows Server 2012-2025 systems. The flaw stems from improper privilege management (CWE-269) and is reported by Microsoft with a patch available; there is no public exploit identified at time of analysis and it is not listed in CISA KEV. With CVSS 7.8 and full confidentiality, integrity, and availability impact, it is a strong candidate for the monthly patch cycle on endpoints and domain-joined servers.

Local privilege escalation in Microsoft Windows Media (the Windows Media component/codec subsystem) allows an already-authenticated local attacker to elevate to SYSTEM by triggering a use-after-free (CWE-416) memory corruption condition. The flaw affects a broad range of currently-supported Windows client and server releases, from Windows 10 1607 and Windows Server 2012 through Windows 11 26H1 and Windows Server 2025. Microsoft has released a patch; there is no public exploit identified at time of analysis and the issue is not listed in CISA KEV.

Elevation of privilege in Microsoft Windows Runtime (WinRT) lets a remote, unauthenticated attacker win a timing window in a shared-resource race condition and gain higher privileges across a broad range of Windows client and server releases (Windows 10 1809 through Windows 11 26H1 and Windows Server 2019/2022/2025). Microsoft-reported and patched, the flaw carries CVSS 8.1, driven by full confidentiality, integrity, and availability impact but tempered by high attack complexity. There is no public exploit identified at time of analysis and it is not listed in CISA KEV.

Information disclosure in the Windows Kernel allows a remote, unauthenticated attacker to read out-of-bounds memory and leak sensitive data across all currently supported Windows client and server builds (Windows 10 1809/21H2/22H2, Windows 11 24H2/25H2/26H1, and Windows Server 2019/2022/2025). The CVSS 3.1 base score is 7.5 (AV:N/AC:L/PR:N/UI:N, high confidentiality impact only). There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but the network-reachable, no-privilege, no-interaction profile makes it a broadly applicable patch-now item.

Local privilege escalation in Microsoft Windows via the LUAFV (LUA File Virtualization, luafv.sys) driver allows an already-authenticated low-privileged user to win a timing race and elevate to SYSTEM/administrator on affected Windows client and server builds. The flaw stems from improper synchronization around a shared resource (CWE-362) and carries a CVSS 7.0 (AV:L/AC:H/PR:L) reflecting a local, high-complexity attack. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but Microsoft has released a patch.

Local privilege escalation in the Windows Runtime (WinRT) affects a broad range of supported Windows client and server releases, from Windows 10 1809 and Windows Server 2019 through Windows 11 26H1 and Windows Server 2025. An authorized local attacker who can execute low-privilege code can trigger a use-after-free (CWE-416) memory-corruption condition to elevate privileges, yielding full confidentiality, integrity, and availability impact on the host. There is no public exploit identified at time of analysis and it is not listed in CISA KEV; Microsoft has released a patch.

Local privilege escalation in Microsoft Windows Runtime (WinRT) affects a broad range of Windows client and server builds, from Windows 10 1809 through Windows 11 26H1 and Windows Server 2019 through 2025. An authorized local attacker who can run low-privileged code can trigger a use-after-free memory-corruption condition to elevate to higher privileges, with high confidentiality, integrity, and availability impact implying a path to SYSTEM. No public exploit identified at time of analysis, and the flaw is not on CISA KEV; a vendor patch is available.

Local code execution in the Microsoft Windows NTFS driver stems from an out-of-bounds read (CWE-125) that an attacker can leverage to run arbitrary code on affected systems, spanning Windows 10 (1607 through 22H2), Windows 11 (24H2/25H2/26H1), and Windows Server 2012 through 2025. Exploitation requires local access and user interaction (AV:L/UI:R), typically opening or mounting a maliciously crafted file or volume, but no prior authentication (PR:N). Microsoft has released a patch; there is no public exploit identified at time of analysis and the issue is not listed in CISA KEV.

Local privilege escalation in the Microsoft Windows Search component lets an already-authenticated low-privilege user gain SYSTEM-level rights through improper access control (CWE-284). It affects all currently supported Windows client and server builds from Windows 10 1809 through Windows 11 26H1 and Windows Server 2019 through 2025. There is no public exploit identified at time of analysis, and it is not listed in CISA KEV, but Microsoft has released a patch.

Local privilege escalation in the Windows Media component affects a broad range of Microsoft Windows client and server editions (Windows 10 1607 through Windows 11 26H1, and Windows Server 2016 through 2025). A low-privileged authenticated attacker can abuse a use-after-free (CWE-416) memory corruption flaw to elevate to higher privileges, achieving full confidentiality, integrity, and availability impact. There is no public exploit identified at time of analysis and the flaw is not on CISA KEV, but the high attack complexity (a likely race condition) is the main barrier to reliable exploitation.

Null pointer dereference in Active Directory Domain Services allows an authorized attacker to deny service over a network.

Heap-based buffer overflow in Windows DirectX allows an authorized attacker to elevate privileges locally.

Elevation of privilege in Microsoft Windows (Windows 10 1809/21H2/22H2, Windows 11 24H2/25H2/26H1, and Windows Server 2019/2022/2025) allows a locally authenticated attacker to escalate to higher privileges via an improper access control weakness (CWE-284). An attacker who already holds a low-privilege foothold on the host can gain full confidentiality, integrity, and availability impact over the system. No public exploit identified at time of analysis, though the flaw was reported by Microsoft and a vendor patch is available.

Privilege escalation in the Windows Runtime (WinRT) allows a network-based, unauthenticated attacker to win a race condition and gain elevated privileges on affected Windows 10, Windows 11 (through 26H1), and Windows Server 2019-2025 systems. Microsoft self-reported the flaw and has shipped a fix; there is no public exploit identified at time of analysis and it is not listed in CISA KEV. The CVSS vector (AV:N/AC:H) reflects a real but timing-dependent attack that is non-trivial to reproduce reliably.

Network-based privilege elevation in the Windows Runtime (WinRT) affects a broad range of Microsoft platforms including Windows 10 (1809 through 22H2), Windows 11 (24H2/25H2/26H1), and Windows Server 2019/2022/2025. An unauthorized attacker who wins a timing race in the improperly synchronized shared-resource handling can gain elevated privileges, with the vulnerability carrying an implicit authentication-bypass characteristic per vendor tags. No public exploit has been identified at time of analysis, and the high attack complexity (AC:H) reflects the need to reliably win a race window.

Local privilege escalation in the Windows Kernel (CVE-2026-50390) lets an already-authenticated attacker abuse a type-confusion condition to run code with elevated (SYSTEM-level) privileges on affected Windows client and server builds ranging from Windows 10 1607 through Windows 11 26H1 and Windows Server 2012 through Server 2025. Microsoft has shipped a fix and there is no public exploit identified at time of analysis, but as a kernel EoP it is a classic second-stage building block for turning a foothold into full host compromise. CVSS is 7.0 (High), reflecting high attack complexity but full confidentiality, integrity, and availability impact once triggered.

Out-of-bounds read in Windows Kernel allows an authorized attacker to elevate privileges locally.

Local code execution in Microsoft's Resilient File System (ReFS) driver lets an already-authenticated, low-privileged user on affected Windows 10, Windows 11, and Windows Server 2016–2025 systems escalate to code execution through a numeric truncation flaw (CWE-197). No public exploit has been identified at time of analysis, and it is not on CISA KEV, but Microsoft has released a patch. Note a data conflict: the description states code execution and the CVSS carries C:H/I:H/A:H, yet the vendor tags label it 'Information Disclosure' — the CVSS-backed local elevation-of-privilege reading is treated as authoritative here.

Denial-of-service (and possible privilege-elevation) heap-based buffer overflow in the Microsoft Windows Remote Desktop Client is reachable over the network, with Microsoft's CVSS vector recording only an availability impact (A:H) despite the description's 'elevate privileges' wording. A patch is available from Microsoft (MSRC update guide), the flaw was reported by Microsoft itself, and there is no public exploit identified at time of analysis. Affected platforms span the full supported Windows client and server line, from Windows 10 1607 and Server 2012 through Windows 11 26H1 and Server 2025.

Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

Integer overflow or wraparound in Windows Devices Human Interface allows an authorized attacker to disclose information locally.

Exposure of sensitive information to an unauthorized actor in Windows Push Notifications allows an authorized attacker to disclose information locally.