Windows Server 2025

Local privilege escalation in the Microsoft Windows Graphics Kernel component allows a low-privileged local user to elevate to SYSTEM by exploiting a use-after-free (CWE-416) memory corruption condition. The flaw affects a broad range of Windows 10, Windows 11, and Windows Server releases, was reported by Microsoft, and has a vendor-released patch available. No public exploit is identified at time of analysis and it is not listed in CISA KEV; the high attack complexity (AC:H) makes reliable exploitation non-trivial.

Local privilege escalation in the Windows Kernel lets an already-authenticated, low-privileged user corrupt kernel memory via a use-after-free (CWE-416) and gain higher privileges on the host. The flaw affects a broad range of currently-supported Windows client and server releases (Windows 10 1607 through Windows 11 26H1, and Windows Server 2016 through 2025); Microsoft has shipped a fix. There is no public exploit identified at time of analysis and the issue is not listed in CISA KEV.

Insertion of sensitive information into log file in Windows Kernel allows an authorized attacker to disclose information locally.

Local privilege escalation in the Windows taskbar (Internal Task Bar component) allows an authenticated attacker to elevate to higher privileges by exploiting a use-after-free memory corruption flaw. The issue affects a broad range of current Windows client and server builds (Windows 10 21H2/22H2, Windows 11 24H2/25H2/26H1, and Windows Server 2025), was reported by Microsoft itself, and is fixed via a vendor patch. There is no public exploit identified at time of analysis and it is not listed in CISA KEV.

Local privilege escalation in the Windows Kernel affects Windows 11 (24H2, 25H2, 26H1) and Windows Server 2025, where a race condition (CWE-362) in the synchronization of a shared kernel resource lets an authenticated low-privileged local user win a timing window to gain higher privileges. The CVSS 3.1 score is 7.8 with a scope-changed vector, the flaw was reported by Microsoft, and a patch is available. There is no public exploit identified at time of analysis and it is not listed in CISA KEV.

Integer overflow or wraparound in Windows Spaceport.sys allows an unauthorized attacker to elevate privileges with a physical attack.

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

Local privilege escalation in the Windows Audio Compression Manager (ACM) allows a low-privileged authenticated user to elevate to higher privileges (CVSS 7.8, CWE-284 improper access control). 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; there is no public exploit identified at time of analysis and it is not listed in CISA KEV.

Local privilege escalation in Microsoft Windows Resilient File System (ReFS) allows an authenticated low-privileged user to gain elevated (SYSTEM-level) privileges by triggering a stack-based buffer overflow (CWE-121) in the ReFS driver. The flaw affects a broad range of Windows client and server releases, 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 Windows Runtime (WinRT) on Windows 11 (24H2, 25H2, 26H1) and Windows Server 2025 allows an authenticated local user to gain higher privileges by exploiting a use-after-free memory-corruption flaw (CWE-416). Successful exploitation yields high confidentiality, integrity, and availability impact, effectively enabling escalation to SYSTEM-level control on the host. There is no public exploit identified at time of analysis, and the flaw is not listed in CISA KEV; the elevated attack complexity (AC:H) indicates exploitation requires winning a race or meeting specific timing/heap conditions.

Local privilege escalation in the Windows AppX Deployment Service (AppXSvc) lets an already-authenticated, low-privileged user win a race condition to elevate to higher privileges across a broad range of Windows client and server builds (Windows 10 1607 through Windows 11 26H1, and Windows Server 2012 through 2025). The flaw stems from improper synchronization of a shared resource, and successful exploitation yields full confidentiality, integrity, and availability impact on the host. It is 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.

Local privilege escalation in the Windows Win32K kernel-mode subsystem allows an already-authenticated low-privileged user to elevate to SYSTEM through an improper access-control flaw. The issue 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. Microsoft has released a patch; there is no public exploit identified at time of analysis, and the flaw is not listed in CISA KEV.

Local privilege escalation in the Windows USB Print Driver affects Windows 11 (24H2, 25H2, 26H1) and Windows Server 2025, where a race condition (improper synchronization of a shared resource) lets an already-authenticated local user win a timing window to execute code at elevated privilege. Reported by Microsoft with a patch available; no public exploit identified at time of analysis and it is not on CISA KEV. The high CVSS attack complexity (AC:H) reflects that the attacker must reliably win a narrow race, which tempers real-world exploitability.

Local privilege escalation in the Windows USB Print Driver on Windows 11 (24H2, 25H2, 26H1) and Windows Server 2025 allows an already-authenticated local user to win a timing race and elevate to SYSTEM-level privileges. The flaw is a race condition (CWE-362) reported by Microsoft; a vendor patch is available, and there is no public exploit identified at time of analysis. Exploitation is constrained by high attack complexity (winning the race window) but yields full confidentiality, integrity, and availability impact once achieved.

Use of uninitialized resource in Windows SMB allows an authorized attacker to disclose information locally.

Local privilege escalation in the Windows Spaceport.sys Storage Spaces driver lets an already-authenticated low-privileged user gain SYSTEM-level control across Windows 10, Windows 11, and Windows Server 2016 through 2025. The flaw stems from a missing authentication check on a critical driver function (CWE-306), and Microsoft has released a patch; no public exploit has been identified at time of analysis. With CVSS 7.8 (local, low-privilege) and full confidentiality, integrity, and availability impact, it is a strong candidate for chaining after an initial foothold.

Exposure of sensitive system information to an unauthorized control sphere in Windows Kernel allows an unauthorized attacker to disclose information locally.

Heap-based buffer overflow in Windows USB Video Driver allows an unauthorized attacker to elevate privileges with a physical attack.

Elevation of privilege in Microsoft Windows (Server 2012 through 2025 and Windows 10/11 clients) lets a low-privileged local user gain SYSTEM-level rights by abusing an improper access control (CWE-284) weakness. The flaw was reported by Microsoft with a patch available, and CVSS 3.1 rates it 7.8 (High) with local vector and low privileges required. No public exploit identified at time of analysis and it is not listed in CISA KEV, so this is a patch-worthy but not emergency issue absent evidence of active exploitation.

Local code execution in the Microsoft Windows NTFS file-system driver lets an attacker run arbitrary code by inducing a victim to interact with a specially crafted NTFS artifact (e.g., a malicious volume, VHD, or file). The flaw stems from an integer underflow (CWE-191) and spans a broad range of Windows client and server builds from Windows Server 2012 through Windows Server 2025 and Windows 10/11. Microsoft has released a patch; there is no public exploit identified at time of analysis and the issue is not listed in CISA KEV.

Uncontrolled resource consumption in Windows Local Security Authority Subsystem Service (LSASS) allows an authorized attacker to deny service over a network.

Local privilege escalation in the Windows Web Proxy Auto-Discovery Protocol (WPAD) component lets an already-authenticated local user run code with SYSTEM-level rights by triggering an integer overflow (CWE-190). The flaw affects a broad range of 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 the low attack complexity and high triad impact make it a meaningful patch-tier issue.

Integer overflow or wraparound in Windows Storage Spaces Direct allows an unauthorized attacker to execute code with a physical attack.

Local privilege escalation in the Microsoft Windows Kernel allows an unauthorized attacker to gain elevated (SYSTEM-level) privileges by triggering a use-after-free condition (CWE-416) in kernel memory. The flaw affects a broad range of 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.

Local code execution in the Windows NTFS driver (CVE-2026-49797) allows an attacker with local access to run arbitrary code by tricking a user into interacting with a maliciously crafted NTFS artifact, exploiting a heap-based buffer overflow (CWE-122). The flaw affects a broad range of Windows client and server releases from Windows 10 1607 and Server 2012 through Windows 11 26H1 and Server 2025. Microsoft has released a patch; no public exploit identified at time of analysis and it is not listed in CISA KEV.

Local privilege escalation in the Windows Kernel lets an already-authenticated attacker corrupt kernel memory via a use-after-free (CWE-416) and gain full control of the host. The CVSS 3.1 vector (AV:L/PR:L, scope-changed with C:H/I:H/A:H) reflects a low-privileged local user escalating to SYSTEM-level compromise across a broad range of Windows 10, Windows 11, and Windows Server builds. 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 code execution in Windows GDI+ (the Graphics Device Interface Plus rendering component) affects a broad range of Microsoft Windows client and server releases from Windows 10 1607 through Windows 11 26H1 and Windows Server 2012 through Server 2025. An attacker who convinces a user to open or preview a specially crafted image or document triggers a heap-based buffer overflow (CWE-122) during graphics parsing, yielding arbitrary code execution in the context of the current user. The CVSS 3.1 base score is 7.8 (AV:L/AC:L/PR:N/UI:R); there is no public exploit identified at time of analysis and it is not listed in CISA KEV, but GDI+ image-parsing flaws are historically attractive to attackers.

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

Local privilege escalation via arbitrary code execution in Microsoft Windows Resilient File System (ReFS) affects a broad range of Windows 10, Windows 11, and Windows Server (2016-2025) builds. An authorized (low-privileged) attacker who can trigger the vulnerable heap allocation path can corrupt heap memory (CWE-122) to run code in the security context of the ReFS driver, yielding full confidentiality, integrity, and availability impact. No public exploit identified at time of analysis, and the flaw is not on the CISA KEV list.

Local code execution in Microsoft's Resilient File System (ReFS) driver allows an authorized (low-privileged) attacker to run arbitrary code with elevated context via a numeric truncation flaw. The bug affects the ReFS component shipped with Windows 10, Windows 11, and Windows Server 2016 through 2025. There is no public exploit identified at time of analysis and it is not listed in CISA KEV; note that the CVE's own tags label it 'Information Disclosure' while the description and CVSS impact (C:H/I:H/A:H) describe full code execution - the code-execution reading should be treated as authoritative.

Local privilege escalation in Microsoft Windows Routing and Remote Access Service (RRAS) allows an already-authenticated low-privileged user to abuse a link-following (symlink/junction) flaw to gain higher privileges on the host. The bug affects a broad range of client and server SKUs from Windows Server 2012 through Windows Server 2025 and Windows 10 1607 through Windows 11 26H1, and Microsoft has shipped a fix. There is no public exploit identified at time of analysis and it is not listed in CISA KEV.

Elevation of privilege in the Windows Universal Disk Format File System driver (UDFS.sys) lets a low-privileged local user gain elevated (kernel/SYSTEM) rights after the victim mounts or opens a maliciously crafted UDF volume. The flaw stems from an integer arithmetic error (CWE-191) in the driver that parses UDF-formatted media such as ISO images, optical discs, and virtual disk files, and affects a broad range of Windows client and server releases from Windows Server 2012 and Windows 10 1607 through Windows 11 26H1 and Windows Server 2025. Microsoft reported the issue and has shipped 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 Microsoft Windows NTFS driver allows an already-authenticated, low-privileged user to gain elevated (likely SYSTEM) privileges by triggering a stack-based buffer overflow, contingent on user interaction. The flaw spans a broad range of supported Windows client and server releases, from Windows 10 1607 and Server 2012 through Windows 11 26H1 and Server 2025. Microsoft has issued a patch and reported the issue itself; there is no public exploit identified at time of analysis and the CVE is not listed in CISA KEV.

Denial of service in the Windows HTTP/2 network stack allows a remote, unauthenticated attacker to exhaust server resources and render affected services unavailable across a broad range of Windows client and server releases (Windows 10/11 and Windows Server 2016 through 2025). 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. The 7.5 CVSS reflects high availability impact with no confidentiality or integrity loss.

Denial of service in Microsoft Windows HTTP.sys allows remote unauthenticated attackers to exhaust system resources and make affected hosts unresponsive over the network. The flaw stems from missing resource limits/throttling (CWE-770) in the kernel-mode HTTP protocol stack, affecting a broad range of Windows client and server releases from Windows 10 1607 through Windows 11 26H1 and Windows Server 2016 through 2025. No public exploit identified at time of analysis, and the issue is not listed in CISA KEV; a vendor patch is available via MSRC.

Security feature bypass in Windows Secure Boot (CWE-358) allows a locally authenticated attacker on affected Windows 10, Windows 11, and Windows Server (2016 through 2025) systems to defeat the boot-integrity trust chain due to an improperly implemented standard security check. Because Secure Boot is the gate that blocks unsigned/tampered bootloaders and rootkits, a successful bypass can enable pre-OS persistence and undermine downstream protections such as BitLocker and Measured Boot. There is no public exploit identified at time of analysis and the CVE is not listed in CISA KEV; Microsoft has published a patch via its update guide.

Local privilege escalation in the Windows Clipboard Server (Windows 10 1809 through Windows 11 26H1 and Windows Server 2019 through 2025) allows an already-authenticated low-privileged user to win a race condition and gain higher privileges on the host. Microsoft credits its own researchers and has shipped a fix; there is no public exploit identified at time of analysis and the CVSS base score is 7.0 (High). The high attack complexity reflects the timing precision needed to exploit the race, which meaningfully limits reliable weaponization.

Local code execution in Microsoft Windows NTFS (New Technology File System) stems from a heap-based buffer overflow (CWE-122) that lets a local attacker run arbitrary code with high confidentiality, integrity, and availability impact. The flaw affects a broad range of Windows client and server builds - from Windows 10 1607 and Server 2012 through Windows 11 26H1 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, but NTFS's role as the default Windows filesystem makes the exposed surface extremely wide.

Information disclosure (and vendor-labeled privilege elevation) in the Windows DHCP Client affects Windows 10 (1607/1809), Windows Server 2012 through 2025, and their Server Core installations via an integer underflow (CWE-191) reachable over the network. A remote attacker positioned to answer DHCP traffic can craft malformed responses that wrap a length/counter calculation, with a CVSS 3.1 base of 7.5 (confidentiality impact only per the published vector). No public exploit is identified at time of analysis and it is not listed in CISA KEV, but Microsoft ships a patch.

Improper link resolution before file access ('link following') in Universal Plug and Play (upnp.dll) allows an authorized attacker to disclose information locally.

Remote code execution in Microsoft Active Directory Domain Services (AD DS) allows an authenticated network attacker to run arbitrary code on domain controllers by triggering a heap-based buffer overflow (CWE-122). Affected platforms span Windows Server 2012 through 2025 (including Server Core) and Windows 10/11 clients acting in AD roles, with Microsoft-issued patches available. There is no public exploit identified at time of analysis and it is not on CISA KEV, but the CVSS 8.8 rating and the sensitivity of the domain-controller attack surface make this a high-priority patch.

Remote code execution in the Microsoft Windows DHCP Server role allows an authenticated network attacker (PR:L) to trigger a heap-based buffer overflow and run arbitrary code on the server. The flaw affects DHCP Server across Windows Server 2012 through Server 2025 (including Server Core installations) and carries a CVSS 8.8 with full confidentiality, integrity, and availability impact. Reported by Microsoft with a vendor patch available; no public exploit identified at time of analysis.

Local privilege escalation in the Windows Push Notifications component (WPN) affects Windows 11 (23H2, 24H2, 25H2, 26H1) and Windows Server 2025 including Server Core, where a race condition (CWE-362) lets an authorized local user win a timing window on a shared resource to run code at a higher privilege level. Microsoft reported the issue and has released a patch; there is no public exploit identified at time of analysis and it is not listed in CISA KEV. Note a signal conflict: the description and CVSS impact frame this as privilege elevation, while the vendor tags also list 'Information Disclosure' - the primary impact should be treated as EoP pending vendor clarification.

Denial of service in the Windows Local Security Authority Subsystem Service (LSASS) allows a remote, unauthenticated attacker to crash the service and disrupt authentication across all supported Windows client and server releases from Windows 10 1607 through Windows 11 26H1 and Windows Server 2012 through Server 2025. The flaw stems from an excessive-size memory allocation (CWE-789) triggerable over the network with no privileges or user interaction, and while a vendor patch is available, there is no public exploit identified at time of analysis and it is not listed in CISA KEV. Impact is limited to availability (A:H) with no confidentiality or integrity loss, but LSASS failure can force system instability or reboots, affecting domain authentication and logon.

Windows Cryptographic Services across a broad range of Windows 10, Windows 11, and Windows Server versions fails to release allocated memory after its effective lifetime (CWE-401), enabling a remote unauthenticated attacker to cause a denial-of-service condition over the network. The CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms exploitation requires no authentication, no user interaction, and no elevated privileges against default configurations. Microsoft has released a patch via MSRC advisory CVE-2026-44806; no public exploit or CISA KEV listing has been identified at time of analysis.

Windows Event Logging Service across a wide range of Windows 10, Windows 11, and Windows Server versions fails to enforce its intended protection mechanisms, permitting any authenticated low-privileged network user to read information that should be access-controlled. The CVSS vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N) confirms exploitation requires only a valid low-privilege account and network connectivity, with no user interaction and no elevated rights - making it a practical post-compromise lateral-movement or reconnaissance tool. No public exploit code has been identified and this CVE is not listed in CISA KEV at time of analysis, but the ubiquitous deployment footprint across the Windows ecosystem elevates organizational exposure.

Remote code execution in Windows PowerShell allows an authenticated attacker with low privileges to run arbitrary code across a network by exploiting a relative path traversal (CWE-23) flaw, provided a victim is induced to interact (UI:R). Affecting supported Windows 10/11 clients and Windows Server 2012 through 2025, the issue carries a CVSS 8.0 with full confidentiality, integrity, and availability impact, and a vendor patch is available via MSRC. There is no public exploit identified at time of analysis, and the CVE is not listed in CISA KEV.

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

Use of uninitialized resource in Windows File Explorer allows an authorized attacker to disclose information locally.

Windows Audio Service on multiple Windows desktop and server versions improperly exposes sensitive information to locally authenticated standard users, enabling information disclosure without requiring elevated privileges. Affecting Windows 10 1809 through Windows 11 26H1 and Windows Server 2019 (with Server 2022 and 2025 referenced in tags), the flaw is exploitable post-foothold by any low-privileged local account, making it a realistic post-exploitation pivot rather than an initial access vector. No public exploit code has been identified at time of analysis, and a vendor-released patch is confirmed available via the Microsoft Security Response Center.

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

Local code execution in Microsoft Windows NTFS driver allows an authenticated attacker to run arbitrary code by triggering a heap-based buffer overflow (CWE-122) after inducing user interaction. 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 there is no public exploit identified at time of analysis.

Local privilege escalation in Microsoft Windows Narrator (the built-in screen reader) arises from improper neutralization of special elements in its Braille support component, allowing an already-authenticated local attacker (PR:L) to inject and execute OS commands that run with elevated privileges. All supported Windows client and server builds from Windows 10 1809 through Windows 11 26H1 and Windows Server 2019-2025 are affected, and Microsoft has released a patch. There is no public exploit identified at time of analysis and the CVE is not in CISA KEV, so exploitation is not confirmed as active.

Out-of-bounds read in Windows Kernel allows an authorized attacker to bypass a security feature locally.

Local code execution in Microsoft Windows Media Foundation lets an attacker run arbitrary code in the context of the victim after luring them to open a maliciously crafted media file. The flaw (CVE-2026-58610, CWE-122 heap-based buffer overflow) affects a broad range of Windows client and server releases from Windows 10 1607 through Windows 11 26H1 and Windows Server 2016 through 2025. CVSS is 7.8 (AV:L/AC:L/PR:N/UI:R) with full confidentiality, integrity, and availability impact; there is no public exploit identified at time of analysis and it is not on CISA KEV.

Local code execution in the Microsoft Graphics Component 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). An attacker who convinces a user to open a specially crafted file or content triggers an out-of-bounds read (CWE-125) that Microsoft rates as enabling code execution with high confidentiality, integrity, and availability impact. There is no public exploit identified at time of analysis and it is not listed in CISA KEV; exploitation requires local access plus user interaction, making it a standard patch-cycle priority rather than an emergency.

Network code execution in the Windows Print Spooler service allows an authenticated attacker to win a synchronization race and run arbitrary code across a broad range of Windows client and server builds (Windows 10 1607 through Windows 11 26H1, and Windows Server 2012 through 2025). Microsoft rates it CVSS 8.8 with high confidentiality, integrity, and availability impact; a vendor patch is available, and there is no public exploit identified at time of analysis. Note that the CVE description and CVSS indicate remote code execution while the source tags label it 'Information Disclosure' — a discrepancy defenders should verify against the MSRC advisory.

Local privilege escalation in the Windows Kernel Mode Driver affects Windows 11 (24H2, 25H2, 26H1) and Windows Server 2025, where a use-after-free (CWE-416) lets an already-authenticated local attacker corrupt kernel memory and elevate to SYSTEM. Reported by Microsoft with a patch already available; there is no public exploit identified at time of analysis and it is not listed in CISA KEV. The CVSS 7.8 (AV:L/PR:L) reflects a high-impact but locally-scoped flaw requiring an existing foothold on the host.

Local privilege escalation in the Windows Virtual Hard Disk (VHD) Miniport Driver lets an authenticated low-privileged user corrupt kernel heap memory and gain SYSTEM-level control. The flaw (CWE-122 heap-based buffer overflow, CVSS 7.8) affects a broad range of Windows 10, Windows 11, and Windows Server builds and was reported by Microsoft. There is no public exploit identified at time of analysis and it is not listed in CISA KEV.

Local privilege escalation in Microsoft Windows arises from a use-after-free flaw (CWE-416) in the Windows Storage component, affecting Windows 10 (1809, 21H2, 22H2), Windows 11 (24H2, 25H2, 26H1), and Windows Server 2019/2022/2025. An authorized attacker who already has low-level access to a machine can trigger the freed-memory reuse to elevate to higher privileges (CVSS 7.0, high attack complexity). Microsoft has released a patch; there is no public exploit identified at time of analysis and the issue is not listed in CISA KEV.

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

Null pointer dereference in Windows Active Directory Domain Services (AD DS) enables a low-privileged authenticated attacker to crash the service remotely, causing denial of service across the affected domain. The flaw spans a wide range of Windows client and server releases, from Windows 10 version 1607 through Windows 11 version 26H1 and Windows Server 2012 through 2025. No public exploit code has been identified and this vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog at time of analysis, though the network-accessible attack surface and low privilege requirement lower the bar for abuse in environments with broad domain user access.

Untrusted search path in Microsoft XML allows an unauthorized attacker to bypass a security feature with a physical attack.

Local privilege escalation in the Windows Hyper-V virtualization stack lets an attacker running code on an affected host trigger a use-after-free to gain higher privileges. The flaw affects Windows 11 (24H2, 25H2, 26H1) and Windows Server 2022/2025, was reported by Microsoft, and has a vendor patch available. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but the modeled full compromise of confidentiality, integrity, and availability (C:H/I:H/A:H) makes it a meaningful patch-cycle priority.

Remote code execution in the Windows Secure Socket Tunneling Protocol (SSTP) component lets an unauthenticated network attacker run arbitrary code by triggering a use-after-free (CWE-416) memory-corruption condition. The flaw spans 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. No public exploit is identified at time of analysis and it is not listed in CISA KEV, but the network attack vector combined with full high impact to confidentiality, integrity and availability makes it a meaningful patch priority.

Local privilege escalation in Microsoft Active Directory Federation Services (AD FS) lets an already-authenticated low-privileged user on the host gain higher privileges due to insufficient granularity of access control (CWE-1220). Affected deployments span AD FS on Windows Server 2012 through Windows Server 2025, and the flaw carries a CVSS 7.8 with high confidentiality, integrity, and availability impact. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, so this is a patch-priority-driven rather than exploitation-driven risk.

Local tampering in Windows CryptoAPI (Crypt32) on Windows 11 (24H2/25H2/26H1) and Windows Server 2022/2025 stems from a missing cryptographic step, letting an authenticated local attacker undermine the integrity and confidentiality of cryptographically protected data. Microsoft rates it 7.1 (High) with high confidentiality and integrity impact; there is no public exploit identified at time of analysis and it is not on the CISA KEV list. A vendor patch is available through the MSRC update guide.

Local code execution in Microsoft Windows GDI+ (the graphics rendering component) via a heap-based buffer overflow (CWE-122), affecting a broad range of Windows client and server releases from Windows 10 1607 through Windows 11 26H1 and Server 2012 through Server 2025. Per the supplied CVSS vector (PR:N), an unauthorized attacker who gets the vulnerable component to process crafted graphics data can achieve high-impact code execution (C:H/I:H/A:H) on the local system. Microsoft has published a patch; there is no public exploit identified at time of analysis and the issue is not listed in CISA KEV.

Remote code execution in the Windows Reliable Multicast Transport Driver (RMCAST) lets an unauthenticated network attacker trigger a use-after-free (CWE-416) and run arbitrary code on a broad range of Windows 10, Windows 11, and Windows Server systems (Server 2012 through Server 2025). Rated CVSS 8.1, the flaw carries high impact to confidentiality, integrity, and availability but requires winning a race condition (AC:H), and no public exploit identified at time of analysis. Reported by Microsoft with a vendor patch available.

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

Remote code execution in the Microsoft Windows TCP/IP networking stack allows an unauthenticated attacker on the same physical or logical network segment to win a race condition and run arbitrary code on the target. The flaw spans a broad range of desktop and server builds from Windows 10 1607 through Windows 11 26H1 and Windows Server 2012 through Server 2025. There is no public exploit identified at time of analysis, but Microsoft has confirmed the issue and shipped a patch, and the high CVSS (8.8) plus network-facing kernel component make it a priority to remediate.

Information disclosure via uninitialized memory in the Windows SMB driver stack affects a broad range of Windows 10, Windows 11, and Windows Server versions. A locally authenticated, low-privileged attacker can trigger a code path that reads from uninitialized memory within the SMB subsystem, potentially leaking sensitive kernel or heap memory contents. No public exploit code or active exploitation has been identified at the time of analysis; Microsoft has released a patch via MSRC.

Denial of service in Windows Active Directory (spanning Windows 10, Windows 11, and Windows Server 2012 through 2025) lets a remote, unauthenticated attacker send crafted network traffic that drives an AD service into an infinite loop, exhausting CPU and rendering domain services unavailable. Because the CVSS vector is AV:N/AC:L/PR:N/UI:N with high availability impact and no confidentiality or integrity loss, this is a pure availability threat against domain controllers. Microsoft has released a patch; there is no public exploit identified at time of analysis and no CISA KEV listing.

Local privilege escalation in the Windows USB Print Driver affecting Windows 11 (24H2, 25H2, 26H1) and Windows Server 2025 lets an already-authenticated, low-privileged user win a race condition (CWE-362) in the driver to gain higher privileges. Microsoft has released a patch and reported the flaw itself; there is no public exploit identified at time of analysis. The high attack complexity (AC:H) reflects the timing-dependent nature of exploiting the shared-resource synchronization defect.

Local privilege escalation in Microsoft Windows Win32K (the kernel-mode GUI subsystem) allows an authenticated local user to elevate to SYSTEM by triggering a use-after-free (CWE-416) memory corruption condition. The flaw affects a broad range of supported builds spanning Windows 10 1809 through Windows 11 26H1 and Windows Server 2019 through 2025, including Server Core installations. Microsoft has released a patch; there is no public exploit identified at time of analysis and the CVE is not listed in CISA KEV.

Remote code execution in the Windows Reliable Multicast Transport Driver (RMCAST) lets an unauthenticated attacker on the same network segment run arbitrary code by triggering an integer underflow (CWE-191) during multicast message processing. All supported Windows client and server builds from Windows Server 2012 through Windows Server 2025 and Windows 10 1607 through Windows 11 26H1 are affected. There is no public exploit identified at time of analysis, but the CVSS 8.8 adjacent-network unauthenticated profile and Microsoft's own reporting make this a high-priority patch.

Local privilege escalation to code execution in the Windows Resilient File System (ReFS) driver affects a broad range of Windows 10/11 and Windows Server 2016 through 2025 releases, where an integer overflow (CWE-190) in filesystem processing lets an already-authenticated local user run arbitrary code in an elevated context. The CVSS 3.1 vector (AV:L/PR:L) confirms low-privileged local access is required rather than remote exploitation, and there is no public exploit identified at time of analysis. Microsoft has released a patch via MSRC.

Local 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. A heap-based buffer overflow (CWE-122) lets an attacker who can reach the local MSMQ service run arbitrary code with high confidentiality, integrity, and availability impact; the CVSS 3.1 base score is 8.4 with a local attack vector but no privileges or user interaction required. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but the vendor (Microsoft) has released a patch.

Local privilege escalation in the Microsoft Printer Drivers component across Windows 10, Windows 11 (through 26H1), and Windows Server 2012 through 2025 lets an already-authenticated attacker corrupt kernel-adjacent memory to gain higher privileges. The flaw is a double free (CWE-415) triggered locally by a low-privileged user, yielding high confidentiality, integrity, and availability impact (CVSS 7.8). No public exploit identified at time of analysis, and it is not listed in CISA KEV.

Local privilege escalation in the Windows Win32K kernel-mode subsystem allows an already-authenticated attacker to win a race condition (CWE-362) and elevate to SYSTEM-level privileges across supported Windows 10, Windows 11, and Windows Server 2019-2025 builds. Reported by Microsoft with a vendor patch available; there is no public exploit identified at time of analysis and EPSS is low (0.16%, 5th percentile). CVSS 7.0 reflects high attack complexity (AC:H) driven by the timing-window nature of the flaw and the requirement for existing low-privilege access (PR:L).

Local privilege escalation in the Windows Active Directory certificate-validation path lets an already-authenticated attacker on Windows 10 (1607/1809) and Windows Server 2016 through 2025 (including Server Core) improperly validate a certificate to gain higher privileges. Microsoft reported and patched the flaw (CWE-295), but there is no public exploit identified at time of analysis and it is not on CISA KEV. The CVSS 7.8 vector (AV:L/PR:L) confirms an authenticated local attacker with full confidentiality, integrity, and availability impact upon success.

Local code execution in Microsoft Windows Media Foundation lets an unauthorized attacker run arbitrary code by luring a user into opening a specially crafted media file. The flaw affects a broad range of Windows 10, Windows 11, and Windows Server builds (from 1809 through Windows 11 26H1 and Server 2025), and Microsoft has released patches. No public exploit identified at time of analysis, but the low attack complexity and full C/I/A impact make it a standard Patch-Tuesday priority.

Local privilege escalation in Microsoft Windows Win32K (the kernel-mode GUI subsystem) lets an already-authenticated low-privilege user corrupt kernel heap memory via a heap-based buffer overflow (CWE-122) to gain SYSTEM-level control. The flaw affects a broad range of client and server builds (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 it is not listed in CISA KEV.

Local privilege escalation in the Windows Win32K kernel-mode subsystem allows an authenticated low-privileged user to win a race condition and elevate to SYSTEM across Windows 10, Windows 11 (through 26H1), and Windows Server 2012 through 2025. Reported by Microsoft with a patch available, it carries CVSS 7.0 but a high attack complexity (AC:H) reflecting the timing-sensitive nature of the flaw. There is no public exploit identified at time of analysis, and EPSS is low (0.19%, 9th percentile), consistent with CISA SSVC rating exploitation as 'none.'

Local privilege escalation in the Windows USB Print Driver lets an already-authenticated low-privileged user win a race condition to gain SYSTEM-level control on Windows 11 (24H2, 25H2, 26H1) and Windows Server 2025. The flaw stems from unsynchronized access to a shared resource, and successful exploitation yields full confidentiality, integrity, and availability impact. 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 USB Print Driver on Windows 11 (24H2, 25H2, 26H1) and Windows Server 2025 lets an already-authenticated low-privileged user win a timing race in the driver to gain elevated privileges. Reported by Microsoft with a patch available; no public exploit identified at time of analysis and it is not listed in CISA KEV. The high attack complexity (must reliably win a race window) tempers real-world exploitability despite full confidentiality, integrity, and availability impact.

Privilege escalation via use-after-free in the Windows USB Print Driver affects Windows 11 (versions 24H2, 25H2, 26H1) and Windows Server 2025, requiring physical access to exploit. An attacker with hands-on access to a target machine can trigger a memory corruption condition through the USB print subsystem to achieve full local privilege escalation - High confidentiality, integrity, and availability impact per CVSS. No public exploit code has been identified at time of analysis, and this vulnerability is not listed in the CISA KEV catalog.

Local privilege escalation in the Windows Common Log File System (CLFS) Driver allows an already-authenticated, low-privileged user to elevate to SYSTEM on a wide range of Windows client and server releases. Microsoft classifies the root cause as exposure of sensitive information (CWE-200), but the CVSS impact profile (C:H/I:H/A:H) reflects that the leaked kernel data enables full local privilege escalation. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, though CLFS has historically been a heavily exploited elevation-of-privilege target in Windows.

Remote code execution in the Microsoft Remote Desktop Client (Windows 11 24H2/25H2/26H1 and Windows Server 2025) allows an unauthenticated network attacker to run arbitrary code via a heap-based buffer overflow. Exploitation is client-side: a victim connecting to an attacker-controlled or malicious RDP endpoint can be compromised, with the CVSS 9.8 vector indicating no privileges or user authentication are required. No public exploit has been identified at time of analysis, but a vendor patch is available and the flaw's parameters make it a high-priority fix.

Network denial of service in the Windows Internet Key Exchange (IKE) protocol implementation allows an unauthenticated remote attacker to crash affected systems by triggering a heap-based buffer overflow. All impact is to availability only (CVSS 7.5, A:H, no confidentiality or integrity loss), making this a reliability/uptime threat against IPsec/VPN-facing Windows 10, Windows 11, and Windows Server hosts rather than a code-execution vulnerability. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but the low attack complexity and lack of authentication make it a meaningful patching priority for internet-exposed IPsec endpoints.