Windows Server 2025

Privilege escalation in the Windows Telephony Service (TapiSrv) allows an authenticated local attacker with low-privilege access to gain SYSTEM-level privileges by exploiting a race condition in how the service handles concurrent access to shared resources. Affected products span Windows 10 (multiple feature releases), Windows 11, and Windows Server 2012 through 2025, representing a broad swath of the Microsoft ecosystem. No public exploit identified at time of analysis and the CVE is not listed in CISA KEV, but a vendor patch is available via the Microsoft Security Response Center.

Remote code execution affects Microsoft Azure Attestation service and Device Health Attestation Service via an integer overflow condition that leads to a heap-based buffer overflow (CWE-122). Unauthenticated network attackers can exploit this flaw - confirmed by PR:N in the CVSS vector - though the high attack complexity (AC:H) indicates precise exploitation conditions must be met. No public exploit code or CISA KEV listing has been identified at time of analysis, but the potential impact is critical: full compromise of confidentiality, integrity, and availability on the affected service.

Privilege escalation via heap-based buffer overflow in Windows Installer (msiexec) allows a low-privileged local user to gain full system control. Affected product is Microsoft Windows across versions that ship with the vulnerable Windows Installer component; exact version scope is defined by the MSRC advisory. No public exploit code has been identified at time of analysis, and the vulnerability is not listed in CISA's KEV catalog, though its low-complexity, no-user-interaction profile makes it a realistic post-foothold escalation tool.

Stack-based buffer overflow in the Windows Installer component (msiexec) enables local privilege escalation to SYSTEM on affected Windows systems. An attacker holding any standard local user account can trigger the overflow with low complexity and no user interaction required, achieving full compromise of confidentiality, integrity, and availability. No public exploit has been identified at time of analysis, and this vulnerability does not appear in the CISA KEV catalog based on available data.

Privilege escalation in Windows Installer exposes all supported Windows systems to SYSTEM-level compromise by any low-privileged local user. The heap-based buffer overflow (CWE-122) in the Installer service requires only an authenticated local session - no user interaction, no elevated credentials, and low attack complexity per CVSS:3.1/AV:L/AC:L/PR:L/UI:N. No public exploit code or active exploitation via CISA KEV has been identified at time of analysis, but the ubiquity of Windows Installer and the straightforward exploitation conditions make this a meaningful post-compromise escalation primitive.

Local privilege escalation in Windows Installer (msiexec) stems from a stack-based buffer overflow (CWE-121) exploitable by any authenticated local user. An attacker with low-privilege access on an affected Windows system can trigger the overflow to gain full SYSTEM-level control, achieving complete confidentiality, integrity, and availability compromise of the local host. No public exploit code or CISA KEV listing has been identified at time of analysis, though the low attack complexity and broad Windows deployment footprint make this a meaningful priority for patch management.

Privilege escalation via heap-based buffer overflow in the Windows DNS component affects Windows 10, Windows 11, and Windows Server editions spanning Server 2012 through Server 2025. An authorized local attacker holding low-privilege credentials can trigger the overflow to achieve full system compromise (C:H/I:H/A:H). No public exploit code or active exploitation has been identified at time of analysis; a vendor-released patch is available through the Microsoft Security Response Center advisory.

Local privilege escalation in the Windows Ancillary Function Driver for WinSock (afd.sys) allows a low-privileged local attacker to gain full system control through a use-after-free memory corruption condition. The CVSS vector (AV:L/AC:H/PR:L) confirms the attack is constrained to local access with high complexity, meaning exploitation is non-trivial and likely requires precise timing or race condition triggering. No public exploit code and no CISA KEV listing have been identified at time of analysis, though the tags indicate Denial of Service is also a potential impact alongside privilege escalation.

Heap-based buffer overflow in the Windows DNS component enables a locally authenticated low-privileged attacker to escalate privileges to SYSTEM across a broad range of Windows releases, from Windows 10 version 1607 through Windows 11 26H1 and Windows Server 2012 through Server 2025. The CVSS 3.1 score of 7.8 reflects low attack complexity and full confidentiality, integrity, and availability impact once local access is obtained, with no user interaction required. No public exploit code or active exploitation has been identified at time of analysis, and a vendor-released patch is available via the Microsoft Security Response Center.

Privilege escalation in the Windows Ancillary Function Driver for WinSock (afd.sys) allows a locally authenticated attacker to gain SYSTEM-level privileges through a use-after-free memory corruption flaw. Affected systems include Windows installations where the WinSock subsystem is active, which covers virtually all Windows deployments. No public exploit code or active exploitation has been identified at time of analysis, though the high-complexity exploitation bar somewhat limits immediate opportunistic risk.

Remote unauthenticated denial of service in Windows Network File System (NFS) allows a network attacker to crash the NFS service by sending a malformed packet that triggers a buffer over-read (CWE-126). Affected systems span Windows Server 2012 through 2025 and Windows 10 versions 1607 and 1809. No public exploit code has been identified at time of analysis, and CISA has not added this to the Known Exploited Vulnerabilities catalog; Microsoft has released patches across all affected build lines.

Remote code execution is possible in Microsoft Azure Attestation and the Device Health Attestation Service due to a race condition (CWE-362) in shared resource handling. An unauthenticated network attacker who can win a precise timing window can achieve full confidentiality, integrity, and availability compromise of the affected service. No public exploit code or CISA KEV listing has been identified at time of analysis, though the high-complexity nature of the flaw provides some natural exploitation barrier.

Local privilege escalation in Windows Key Guard exposes any authenticated local user to full system compromise via a heap-based buffer overflow (CWE-122). The CVSS vector (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) confirms low-complexity exploitation requiring only a standard local user session - no elevated rights, no user interaction. This class of vulnerability is a staple post-initial-access technique in ransomware and APT intrusion chains. No public exploit identified at time of analysis, and no CISA KEV listing is present in the provided data.

Local privilege escalation in the Windows Storage Port Driver (storport.sys) exploits a heap-based buffer overflow to allow an authorized low-privilege user to gain SYSTEM-level control of an affected Windows host. The CVSS 7.8 vector (AV:L/AC:L/PR:L/UI:N) confirms the attack requires only an existing low-privilege local session - no additional permissions or user interaction are needed - with full confidentiality, integrity, and availability impact upon success. No public exploit has been identified at time of analysis, and no active exploitation has been confirmed in CISA KEV.

Privilege escalation in Windows DNS affects every major Windows 10, 11, and Windows Server release from 2012 through 2025, allowing a locally authenticated low-privileged attacker to achieve full system compromise through a heap-based buffer overflow triggered by integer wraparound. The CVSS base score of 7.8 reflects total C/I/A impact and low attack complexity once local access exists. No public exploit code has been identified at time of analysis, and EPSS at 0.26% (17th percentile) confirms low current exploitation probability - though SSVC rates technical impact as total, underscoring that successful exploitation yields complete system control.

Privilege escalation in Windows DNS affects a broad range of Windows 10, Windows 11, and Windows Server releases through a numeric truncation error (CWE-197) in the DNS component. An authorized local attacker already holding high-privilege credentials can exploit this flaw to achieve full compromise of confidentiality, integrity, and availability on the affected host. Microsoft has released patched builds across all affected version lines; no public exploit code exists and no active exploitation has been identified at time of analysis.

Privilege escalation in the Windows DNS service affects a broad range of Windows client and server versions from Windows Server 2012 through Windows Server 2025 and Windows 10/11 across all major feature releases. The vulnerability stems from a numeric truncation error (CWE-122, heap-based buffer overflow) that an already-privileged local attacker can trigger to gain elevated access beyond their current privilege level. No public exploit code and no CISA KEV listing are present at time of analysis, but Microsoft has released patches across all affected product lines.

Heap-based buffer overflow in the Windows iSCSI Target Service enables an unauthenticated remote attacker to trigger denial of service across a wide range of Windows Server versions from 2012 through 2025. The vendor-assigned CVSS vector of C:H/I:H/A:H suggests potential impact beyond the description's stated denial-of-service scope, warranting attention to whether memory corruption could extend to confidentiality or integrity compromise. No public exploit or active exploitation has been identified at time of analysis; however, SSVC designates the attack as automatable, elevating the urgency for organizations running exposed iSCSI targets to apply available patches.

Local privilege escalation in Windows DNS affects a broad range of Windows client and server operating systems, enabling an already-authenticated local attacker to gain elevated privileges on the target system. The CVSS vector (AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H) indicates the attacker requires high existing privileges - consistent with the description's reference to an 'authorized attacker' - yet can achieve full confidentiality, integrity, and availability impact post-exploitation. No public exploit code has been identified at time of analysis, and the vulnerability does not appear in the CISA KEV catalog; a vendor-released patch is available via Microsoft's Update Guide.

Information disclosure via a buffer over-read in the Windows SMB Client component affects a broad spectrum of Microsoft Windows desktop and server editions, from Windows Server 2012 through Windows 11 25H2. An attacker who controls a malicious SMB server and induces a target Windows user to connect to it can trigger the client to read beyond allocated memory buffer boundaries, leaking potentially sensitive process memory contents across the network. SSVC rates exploitation status as none and no public exploit code has been identified at time of analysis, though the high confidentiality impact (C:H) and the near-universal deployment footprint of the Windows SMB Client make this a meaningful routine patch priority.

Remote code execution in the Windows iSCSI Target Service allows an unauthenticated network attacker to run arbitrary code by exploiting a heap-based buffer overflow (CWE-122) in the service's network-facing request handling. The flaw carries a critical 9.8 CVSS rating and is remotely reachable with no privileges or user interaction, meaning any exposed iSCSI Target endpoint can be compromised end-to-end. No public exploit identified at time of analysis, and the vulnerability is not listed in CISA KEV.

Privilege escalation in Windows Message Queuing (MSMQ) allows a locally authenticated attacker to gain SYSTEM-level privileges via a heap-based buffer overflow. Affected systems are those running Windows with the Message Queuing service enabled. The CVSS score of 7.8 (High) reflects high confidentiality, integrity, and availability impact, though exploitation requires existing local access. No public exploit or CISA KEV listing has been identified at time of analysis.

Remote code execution via use-after-free memory corruption in Windows DNS enables unauthenticated network attackers to achieve full system compromise against exposed DNS servers. The CVSS:3.1 vector (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H) confirms network-reachable, zero-privilege exploitation, though high attack complexity signals that reliable triggering requires precise memory state manipulation rather than simple packet delivery. No public exploit identified at time of analysis, and this CVE is not listed in the CISA KEV catalog.

Privilege escalation in Windows Desktop Window Manager (DWM) is possible via a use-after-free memory corruption flaw exploitable by a locally authenticated low-privileged attacker. Successful exploitation grants full control over confidentiality, integrity, and availability of the affected system, consistent with elevation to SYSTEM-level privileges. No public exploit code has been identified at time of analysis, and CISA KEV listing has not been confirmed.

Heap-based buffer overflow in the Windows Desktop Window Manager (dwm.exe) enables a locally authenticated low-privileged user to escalate to SYSTEM-level privileges. The CVSS vector (AV:L/AC:L/PR:L/UI:N) confirms exploitation requires only existing local access with standard user credentials and no user interaction, making this a viable second-stage privilege escalation tool post-initial-compromise. No public exploit or CISA KEV listing has been identified at time of analysis, but the low attack complexity is a meaningful risk signal for defenders.

Privilege escalation in Windows Desktop Window Manager (DWM) allows a low-privileged local attacker to exploit a heap-based buffer overflow and obtain SYSTEM-level access. The vulnerability affects all modern Windows systems where DWM is running - its default state on any graphical Windows installation - and requires no user interaction once the attacker has local code execution. No public exploit identified at time of analysis and not listed in CISA KEV, though the low attack complexity (AC:L) meaningfully reduces the skill threshold for weaponization.

Uncontrolled resource consumption in the Windows DHCP Client enables an unauthenticated attacker on the same network segment to crash or deny service to affected hosts without any user interaction. Affected platforms span Windows 11 (versions 24H2, 25H2, and 26H1) and Windows Server 2025, all in unpatched builds. No public exploit code or active exploitation (KEV) has been identified at time of analysis; a vendor-released patch is available via the Microsoft Security Response Center.

Out-of-bounds read in the Windows NTFS kernel driver (CWE-125) allows a low-privileged local attacker to disclose potentially sensitive kernel memory contents across a broad range of Windows 10, Windows 11, and Windows Server editions from Server 2012 through Server 2025. The CVSS vector confirms local-only exploitability with low privilege requirements and no user interaction needed, yielding high confidentiality impact but no integrity or availability consequence. No public exploit code and no CISA KEV listing have been identified at time of analysis; however, the breadth of affected versions across both consumer and enterprise Windows releases makes timely patching critical for any organization with a Windows estate.

Inadequate encryption strength in Windows Active Directory enables a low-privileged authenticated network attacker to bypass a security feature, resulting in a high-integrity impact. Affected platforms span Windows Server 2022, Windows Server 2025, and multiple Windows 11 release channels (23H2 through 26H1). No public exploit identified at time of analysis; SSVC assessment confirms no observed exploitation and the attack is not automatable, placing this in a lower operational urgency tier despite the high integrity impact rating.

Privilege escalation via use-after-free in Windows Win32K (win32k.sys) affects Windows 11 versions 24H2, 25H2, and 26H1, as well as Windows Server 2025 in both full and Server Core installations. An authenticated local attacker exploiting CWE-416 memory corruption in the Win32K kernel subsystem can elevate from low-privileged user to SYSTEM-level access. No public exploit or CISA KEV listing has been identified at time of analysis; however, Microsoft has released a patch addressing all affected build ranges.

Privilege escalation in Windows Win32K via a use-after-free memory corruption flaw enables a locally authenticated standard user to gain SYSTEM-level access across a broad range of Microsoft Windows desktop and server releases. The vulnerability resides in the win32k.sys kernel-mode driver and carries a CVSS 7.8 score with low attack complexity and no user interaction required once local code execution is established. No public exploit has been identified at time of analysis and the vulnerability is not listed in CISA KEV, though vendor patch is available and Win32K LPE flaws are historically attractive as second-stage payloads in chained attack campaigns.

Local privilege escalation in Windows Installer (msiexec) enables an authenticated low-privileged user to trigger a heap-based buffer overflow, potentially achieving SYSTEM-level code execution across a broad range of Windows client and server platforms spanning over a decade of releases. Affected systems include Windows 10 through Windows 11 25H2 and Windows Server 2012 through Server 2025, making the exposure surface extensive across enterprise and consumer deployments. No public exploit identified at time of analysis and no active exploitation confirmed via CISA KEV; vendor-released patches are available through the Microsoft Security Response Center.

Privilege escalation in the Windows Kernel (CVE-2026-65773) enables a locally authenticated low-privileged attacker to gain full SYSTEM-level control over affected systems, with high impact on confidentiality, integrity, and availability. The flaw affects a wide swath of Windows releases - from Windows 10 1809 through Windows 11 26H1 and Windows Server 2019 through 2025 - making the exposed surface exceptionally broad. No public exploit or CISA KEV listing has been identified at time of analysis, though the low attack complexity (AC:L) means a working exploit, once developed, would require minimal environmental preconditions.

Windows iSCSI Target Service across multiple Windows Server and Windows 10 versions contains a null pointer dereference that enables an unauthenticated remote attacker to crash the service, resulting in denial of service. Affected systems span Windows Server 2016 through 2025 and Windows 10 versions 1607 and 1809, all below their respective patched build numbers. No public exploit code has been identified at time of analysis, and the vulnerability is not listed in the CISA KEV catalog, though the low-complexity, unauthenticated network vector makes it straightforward to exploit once the target service is reachable.

Remote code execution via heap-based buffer overflow in the Windows iSCSI Target Service affects a broad range of Windows Server versions from Server 2012 through Server 2025, as well as Windows 10 (versions 1607 and 1809). An unauthenticated network attacker can send a malformed iSCSI protocol request to trigger CWE-122 heap corruption and achieve arbitrary code execution on the target host. No public exploit identified at time of analysis and no CISA KEV listing, though the CVSS score of 8.1 (AC:H) reflects real exploitation complexity; the full C:H/I:H/A:H impact triad makes this a credible priority for environments running the iSCSI Target role.

Privilege escalation via use-after-free in the Windows Win32K kernel subsystem affects Windows 10, Windows 11, and Windows Server releases from 2016 through 2025. An authorized local attacker with low-level authenticated access can exploit memory corruption in Win32K's kernel pool to elevate to SYSTEM-level privileges. CVSS rates this 7.0 with high attack complexity (AC:H); no CISA KEV listing or public proof-of-concept has been identified at time of analysis.

Privilege escalation in the Windows Remote Access API via a heap-based buffer overflow (CWE-122) allows an authenticated local attacker with low privileges to gain full SYSTEM-level control over affected Windows 11 and Windows Server 2022/2025 hosts. The CVSS vector (AV:L/AC:L/PR:L/UI:N) confirms exploitation requires only a valid local account and no user interaction, making it a reliable post-compromise escalation path. No public exploit code or CISA KEV listing has been identified at time of analysis; Microsoft has released patches for all enumerated affected versions.

Privilege escalation via heap buffer overflow in the Windows Remote Access (RAS) API affects every major in-support Windows desktop and server release, from Server 2012 R2 through Windows 11 26H1 and Server 2025. An authenticated local attacker with low-privileged access can trigger a CWE-122 heap overflow to achieve full SYSTEM-level compromise with High confidentiality, integrity, and availability impact and no user interaction required. No public exploit code or active exploitation has been identified at time of analysis; Microsoft has released a patch across all affected build lines.

Windows GDI (Graphics Device Interface) exposes an out-of-bounds read flaw exploitable by any locally authenticated, low-privileged user across a broad span of Windows releases - from Windows 10 Version 1607 and Windows Server 2012 through Windows 11 26H1 and Windows Server 2025. Successful exploitation yields high-confidence memory disclosure (C:H per CVSS), enabling an attacker to read memory contents beyond the intended GDI buffer boundary, potentially exposing credentials, session material, or cryptographic data. No public exploit code or active exploitation has been identified at time of analysis; however, the low attack complexity and extremely wide platform coverage make this a high-priority routine patch-cycle item.

Privilege escalation in the Windows Backup Engine component affects a broad range of Microsoft Windows client and server releases, exploitable by a local authenticated user holding standard privileges. The vulnerability stems from a race condition (CWE-362) in how the Backup Engine manages shared resources under concurrent execution, creating a timing window that a low-privileged attacker can win to gain elevated - likely SYSTEM-level - access. No public exploit identified at time of analysis and the vulnerability is absent from the CISA KEV catalog; however, Microsoft has issued patched builds across all affected platform branches.

Privilege escalation via heap-based buffer overflow in the Windows Desktop Window Manager (DWM) Core Library affects a broad range of Windows client and server editions spanning from Windows 10 1607 through Windows 11 26H1 and multiple Windows Server releases. An authenticated local attacker can exploit the overflow to gain full system-level privileges, achieving high confidentiality, integrity, and availability impact on the compromised host. No public exploit has been identified at time of analysis, and no active exploitation has been confirmed by CISA KEV, but the vendor has released patches addressing the affected builds.

Remote code execution in Windows Deployment Services (WDS) allows an unauthenticated network attacker to trigger a use-after-free (CWE-416) and run arbitrary code on the affected server. The flaw spans virtually every supported Windows Server release (2012 through 2025) plus Windows 10 clients running the WDS role, and carries a critical CVSS 9.8 (AV:N/AC:L/PR:N/UI:N). Microsoft has released patches; there is no public exploit identified at time of analysis and no CISA KEV listing, so exploitation is currently theoretical but the low-complexity, no-auth network vector makes this a high patch priority.

Privilege escalation in the Windows Capability Access Management Service (camsvc) allows a local authenticated attacker to gain SYSTEM-level access via a use-after-free (UAF) memory corruption flaw. The vulnerability spans a wide surface including Windows 10 (versions 1809, 21H2, 22H2), Windows 11 (versions 23H2 through 26H1), and Windows Server 2019, 2022, and 2025, covering both standard and Server Core installations. No public exploit code or active exploitation has been confirmed at time of analysis; however, the breadth of affected builds and the high CIA impact upon successful exploitation make patching a priority for organizations with multi-user or shared Windows environments.

Local code execution via heap-based buffer overflow in Windows GDI+ (Graphics Device Interface Plus) affects a wide range of Windows desktop and server editions from Windows Server 2012 through Windows 11 26H1 and Windows Server 2025. Any locally authenticated low-privilege user can trigger the overflow, gaining full control over confidentiality, integrity, and availability on the affected host. No public exploit code has been identified at time of analysis, and the vulnerability does not appear in the CISA KEV catalog, but Microsoft has released patches across all affected version branches.

Remote code execution via double free (CWE-415) in the Windows Secure Socket Tunneling Protocol (SSTP) service enables a network-adjacent, unauthenticated attacker to corrupt heap memory and execute arbitrary code. The vulnerability spans virtually every supported Windows Server and Windows 10/11 release, from Server 2012 through Server 2025 and Windows 11 26H1, making the remediation footprint extremely broad. No public exploit code or CISA KEV listing has been identified at time of analysis; however, the CVSS AC:H rating indicates exploitation requires specific race or protocol conditions rather than a trivial spray-and-pray approach.

Privilege escalation in Windows Desktop Window Manager (DWM) Core Library via a use-after-free memory corruption flaw allows a locally authenticated, low-privileged attacker to achieve full SYSTEM-level code execution. Affected systems span Windows 10 21H2/22H2, Windows 11 23H2 through 26H1, Windows Server 2022, and Windows Server 2025 (including Server Core), representing a broad cross-section of the active Microsoft OS estate. No public exploit or CISA KEV listing has been identified at time of analysis, but the low attack complexity and wide version coverage make patching a near-term priority.

Out-of-bounds read in the Windows NTFS filesystem driver exposes kernel memory contents to local authenticated attackers across a wide range of Windows client and server releases, from Windows Server 2012 through Windows 11 26H1 and Server 2025. Exploitation requires only a low-privileged local account (CVSS PR:L, AV:L), yielding high confidentiality impact with no integrity or availability consequence. No public exploit code exists and SSVC exploitation status is confirmed 'none', though the broad platform footprint and low-privilege bar make this a meaningful patch priority for multi-user and shared-access environments.

Privilege escalation via heap-based buffer overflow in Windows Win32K (win32k.sys) allows a low-privileged local user to achieve full SYSTEM-level control across a broad range of Windows and Windows Server releases. The vulnerability spans Windows 10 1607 through Windows 11 26H1 and Windows Server 2012 through Server 2025, making the attack surface effectively ubiquitous across enterprise environments. No public exploit identified at time of analysis, but vendor-released patches are available via the Microsoft Security Response Center.

Privilege escalation in Windows DNS across a wide range of Windows 10, Windows 11, and Windows Server releases exploits a numeric truncation error (CWE-122, heap-based buffer overflow) to allow an authorized local attacker with high privileges to fully compromise the vulnerable system. Affected builds span from Windows Server 2012 through Windows Server 2025 and Windows 11 26H1, with vendor-supplied patches now available from Microsoft MSRC. SSVC assessment confirms no current exploitation activity and the vulnerability is not automatable, though technical impact is rated total across confidentiality, integrity, and availability.

Privilege escalation in Windows DNS across a broad range of Microsoft Windows releases stems from a numeric truncation error (CWE-122) that produces a heap-based buffer overflow, enabling an already high-privileged local attacker to escalate further - likely to SYSTEM level. The vulnerability spans Windows Server 2012 through Server 2025 and Windows 10/11 consumer editions, representing a wide patching surface. No public exploit has been identified at time of analysis, and CISA SSVC confirms exploitation status as none with no automatable attack path, though technical impact is rated total.

Privilege escalation through an out-of-bounds read in the Windows NTFS kernel driver (ntfs.sys) affects every major Windows desktop and server release from Windows Server 2012 through Windows 11 26H1 and Windows Server 2025. A locally authenticated standard user can trigger the memory read flaw to gain SYSTEM-level privileges, yielding full confidentiality, integrity, and availability impact. No public exploit has been identified at time of analysis and the vulnerability is not listed in the CISA KEV catalog, but the low attack complexity, absence of required user interaction, and near-universal Windows deployment footprint make this a high-priority patch cycle item.

Remote code execution in the Windows DNS component allows an unauthenticated network attacker to run arbitrary code by triggering a stack-based buffer overflow (CWE-121). The flaw affects a broad range of Microsoft platforms from Windows 10 1607/1809 through Windows Server 2012 to Server 2025, including Server Core installations, and carries a CVSS 9.8 rating with no required privileges or user interaction. Microsoft has shipped fixes; there is no public exploit identified at time of analysis and the issue is not listed in CISA KEV.

Privilege escalation via stack-based buffer overflow in the Windows Win32K kernel-mode subsystem enables a locally authenticated low-privileged user to gain SYSTEM-level access. Nineteen distinct Windows releases are confirmed affected, spanning Windows 10 through Windows 11 26H1 and Windows Server 2012 through Server 2025. No public exploit code or CISA KEV listing has been identified at time of analysis, though Win32K has historically been a favored target of APT actors and commodity malware for post-exploitation privilege escalation.

Privilege escalation via out-of-bounds read in the Windows Win32K kernel graphics subsystem affects every supported and extended-support Windows client and server release, from Windows Server 2012 through Windows 11 26H1. Any locally authenticated standard user - requiring no elevated permissions or user interaction - can exploit CWE-125 in win32k.sys to obtain SYSTEM-level privileges. No public exploit code or CISA KEV listing has been identified at time of analysis, though the breadth of affected builds across the Microsoft fleet makes this a broad patching priority regardless of active exploitation signals.

Local privilege escalation in Windows User Profile Service affects all major current Windows client and server releases, allowing any authenticated local user to gain SYSTEM-level privileges by exploiting improper symlink or junction-point resolution (CWE-59). The CVSS vector (AV:L/AC:L/PR:L/UI:N) confirms low attack complexity with no user interaction required - a standard domain or local account is sufficient. Vendor patch is available; no public exploit is identified at time of analysis, but the low barrier to exploitation makes this a practical post-compromise escalation primitive.

Unauthenticated code execution in Windows DHCP Server allows an attacker positioned on an adjacent network segment to trigger a heap-based buffer overflow and achieve full system compromise. The vulnerability spans a wide range of Microsoft server and desktop platforms, from Windows Server 2012 through Windows Server 2025 and select Windows 10 builds, making it broadly relevant in Windows-centric enterprise environments. No public exploit code or CISA KEV listing has been identified at time of analysis, but the low-complexity, zero-interaction exploitation profile and vendor-confirmed patch availability make this a high-priority patching candidate for any organization running Windows DHCP Server.

Remote code execution is possible in Windows GDI+ across a broad range of Windows 10, 11, and Windows Server versions due to an integer overflow that leads to a heap-based buffer overflow (CWE-122). Network-based attackers with no privileges required can exploit this by delivering a crafted image or graphic file, requiring only that the victim open or preview the content. A vendor patch is available via MSRC; no public exploit code or CISA KEV listing has been identified at time of analysis.

Remote code execution in Windows DNS Server allows unauthenticated network attackers to exploit a race condition in concurrent DNS request processing to achieve full system compromise. The flaw spans Windows Server 2016 through 2025 and select Windows 10 builds, targeting the server-side DNS component; the 'Authentication Bypass' tag indicates the race window undermines an internal access control that would otherwise gate execution. Microsoft has released build-specific patches; no public exploit code or CISA KEV listing has been identified at time of analysis, though the network vector and full C/I/A impact make this a high-priority patching target for any organization running the Windows DNS Server role.

Remote code execution in Windows Routing and Remote Access Service (RRAS) allows unauthenticated network attackers to fully compromise affected hosts across an exceptionally broad range of Windows versions, from Server 2012 through Server 2025 and Windows 10/11. The root cause is a use-after-free memory corruption flaw (CWE-416) combined with an authentication bypass, enabling an attacker to execute arbitrary code without credentials. No public exploit code or CISA KEV listing has been identified at time of analysis, but the network-exposed attack surface, zero-authentication barrier, and breadth of affected platforms make this a high-priority patching target. A vendor-released patch is available via Microsoft MSRC.

Remote code execution in Microsoft Active Directory Certificate Services (AD CS) is achievable by low-privileged authenticated network attackers through a use-after-free (CWE-416) memory corruption flaw. All supported Windows Server versions from 2012 through 2025 are affected, along with Windows 10 versions 1607 and 1809. Microsoft has released patches via the MSRC update guide; no public exploit code or CISA KEV listing has been identified at time of analysis, though the low attack complexity and broad version coverage make this a high-priority remediation item.

Remote code execution in Windows DNS exposes a wide range of Windows Server and desktop systems to unauthenticated exploitation from adjacent network positions. Rooted in a CWE-787 out-of-bounds write triggered during DNS processing, the flaw carries a CVSS 8.8 score reflecting full confidentiality, integrity, and availability impact with no credentials or user interaction required. No public exploit identified at time of analysis, but a vendor-released patch is available and the broad affected version list - spanning Windows 10/11 and Server 2019 through 2025 - makes prioritized patching urgent for any environment where the DNS service is internet-edge or internally exposed.

Heap-based buffer overflow in the Windows Reliable Multicast Transport (RMCAST) kernel driver enables unauthenticated adjacent-network attackers to execute arbitrary code at kernel privilege level across a broad range of Windows desktop and server releases, from Server 2012 through Windows 11 version 26H1. The CVSS 8.8 rating reflects the zero-credential, zero-interaction exploitation path, constrained only by the requirement for network adjacency. No public exploit has been identified at time of analysis, and the vulnerability does not currently appear in the CISA KEV catalog; a vendor-released patch with confirmed fixed build numbers is available via Microsoft MSRC.

Remote code execution in Microsoft's QUIC transport implementation (MsQuic) allows an unauthenticated network attacker to run arbitrary code by triggering a use-after-free (CWE-416) in the QUIC protocol handler across supported Windows 11 (23H2/24H2/25H2/26H1) and Windows Server 2022/2025 builds. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N) rates it 9.8 Critical, reflecting no authentication or user interaction and full compromise of confidentiality, integrity, and availability. No public exploit has been identified at time of analysis and it is not listed in CISA KEV, but a vendor patch is available.

Integer underflow in the Windows DHCP Server service exposes adjacent-network unauthenticated attackers to high-confidentiality memory disclosure across a broad range of Windows Server releases from 2012 through 2025, plus Windows 10 1607 and 1809. The root cause (CWE-125 out-of-bounds read triggered by arithmetic underflow) allows a crafted DHCP packet to cause the server to read and return memory beyond the intended buffer boundary. No active exploitation is confirmed (not in CISA KEV) and SSVC rates exploitation status as none; a vendor patch is available via the Microsoft Security Response Center.

Local privilege escalation in Windows DHCP Server affects all major Windows Server releases from 2012 through 2025, as well as Windows 10 versions 1607 and 1809. An authorized low-privileged local attacker can exploit a symlink-following flaw (CWE-59) during DHCP Server file access operations to gain full control (C:H/I:H/A:H) over the affected system. No public exploit code or CISA KEV listing has been identified at time of analysis; Microsoft has released patches for all affected versions.

Privilege escalation via heap-based buffer overflow in the Windows HTTP.sys kernel-mode driver affects Windows 11 (23H2 through 26H1) and Windows Server 2022/2025. An authenticated low-privileged local attacker can exploit this flaw to gain SYSTEM-level privileges on the target machine. No public exploit code or CISA KEV listing is identified at time of analysis, but the low attack complexity (AC:L) and breadth of affected Windows builds make this a significant patching priority for organizations running vulnerable versions.

Local privilege escalation in the Windows DHCP Server service allows a low-privileged authenticated attacker to fully compromise system confidentiality, integrity, and availability through improper symbolic link handling (CWE-59). Affected deployments span Windows Server 2012 through 2025 and Windows 10 1607/1809. No public exploit code or CISA KEV listing has been identified at time of analysis, but the low attack complexity and broad version coverage across enterprise server infrastructure make this a credible post-access escalation path.

Privilege escalation in Windows DHCP Server exploits improper symbolic link resolution (CWE-59), allowing an authenticated local attacker with low privileges to fully compromise system confidentiality, integrity, and availability. The flaw affects Windows Server 2012 through 2025 and select Windows 10 builds where the DHCP Server role is active. No public exploit or CISA KEV listing has been identified at time of analysis, but the low attack complexity (AC:L) and no user interaction requirement make this a credible post-compromise escalation path.

Remote code execution in Windows SMB Server is achievable by a network-authenticated attacker exploiting a heap-based buffer overflow (CWE-122). The CVSS vector (AV:N/AC:L/PR:L/UI:N) confirms that low-privileged, network-accessible credentials are sufficient - no user interaction or elevated rights are required. The vulnerability affects a broad range of Windows client and server releases from Windows Server 2012 through Windows 11 26H2 and Windows Server 2025, with vendor patches now available. No public exploit code or CISA KEV listing has been identified at time of analysis.

Windows Win32K contains an untrusted pointer dereference (CWE-822) that allows a locally authenticated attacker to disclose sensitive kernel or process memory contents. Affected systems include multiple Windows 11 release branches (23H2, 24H2, 25H2, 26H1) and Windows Server 2025, both full and Server Core installations. No public exploit has been identified at time of analysis and exploitation has not been confirmed by CISA KEV; Microsoft has released patches addressing all affected build ranges.

Privilege escalation via heap-based buffer overflow in the Windows NTFS driver enables a local authenticated attacker with standard user rights to gain SYSTEM-level control on affected Windows endpoints and servers. The vulnerability spans a wide swath of the Windows ecosystem, from Windows Server 2012 through Windows Server 2025 and Windows 11 26H1, making the aggregate exposure significant. No public exploit code or CISA KEV listing is confirmed at time of analysis, but the low attack complexity (AC:L) and absence of user interaction (UI:N) mean that a working exploit would be highly reliable once developed.

Out-of-bounds read in the Windows NTFS driver exposes sensitive memory contents to locally authenticated attackers across a wide range of Microsoft Windows and Windows Server releases. The flaw (CWE-125) allows a low-privileged local user to read kernel or process memory beyond intended boundaries, resulting in information disclosure with high confidentiality impact but no integrity or availability consequences. No public exploit code has been identified at time of analysis, and CISA SSVC rates exploitation as none with partial technical impact.

Remote code execution in Windows LDAP (Lightweight Directory Access Protocol) affects a broad swath of Microsoft Windows desktop and server editions, from Windows 10 through Windows 11 and Windows Server 2012 through 2025. A use-after-free memory corruption flaw (CWE-416) in the LDAP client implementation allows a network-accessible, unauthenticated attacker to achieve arbitrary code execution with high confidentiality, integrity, and availability impact, contingent on user interaction - most likely the victim system initiating or being induced to make an LDAP connection to an attacker-controlled server. No public exploit identified at time of analysis and no CISA KEV listing, but the CVSS score of 8.8 and the breadth of affected Windows versions make this a high-priority patching target.

Information disclosure in the Windows NTFS filesystem driver allows a local low-privileged attacker to read beyond buffer boundaries and expose sensitive memory contents. Affecting virtually every supported Windows desktop and server release - from Windows 10 1607 through Windows Server 2025 and Windows 11 26H1 - the vulnerability requires only a standard local user account and no special configuration, making it a realistic threat in multi-tenant, shared, or cloud environments where local access is granted to semi-trusted users. No public exploit code or active exploitation has been identified at time of analysis; Microsoft has released patches across all affected product lines.

Remote code execution via a stack-based buffer overflow in the Windows kernel TCP/IP driver (CWE-121) affects all major Windows client and server releases from Windows 10 1607 through Windows 11 26H1 and Windows Server 2012 through 2025. An unauthenticated remote attacker who can deliver crafted TCP/IP packets to an exposed system may gain kernel-level code execution without requiring user interaction. No public exploit or CISA KEV listing has been identified at time of analysis, though the kernel-mode attack surface and network-accessible delivery make this a high-priority patching target; Microsoft has released patches for all affected platforms.

Remote code execution is achievable in Windows SMB Server via a heap-based buffer overflow exploitable by a low-privileged, authenticated network attacker. The vulnerability (CWE-122) spans a wide range of Microsoft Windows client and server releases from Windows Server 2012 through Windows Server 2025 and Windows 10/11. Microsoft has released patches via the MSRC update guide; no KEV listing or public exploit code is present in the available intelligence at time of analysis.

Privilege escalation via use-after-free in the Windows Kernel affects Windows 11 (versions 23H2, 24H2, 25H2, and 26H1) and Windows Server 2025, enabling a locally authenticated low-privileged attacker to elevate to SYSTEM-level control. The CWE-416 root cause combined with high attack complexity (AC:H) indicates exploitation likely requires precise timing or race-condition engineering rather than a trivial one-shot trigger. Vendor patches are available via MSRC; no active exploitation has been confirmed by CISA KEV at time of analysis.

Remote code execution via use-after-free in the Windows DNS service allows an authenticated, network-based attacker to execute arbitrary code on affected Windows Server and Windows 10 systems. The vulnerability spans a wide range of Windows Server versions from 2012 through 2025 and is exploitable over the network, though high attack complexity (AC:H) limits opportunistic exploitation. No public exploit identified at time of analysis; vendor-released patches with specific build targets are available via the Microsoft Security Response Center.

Out-of-bounds read in the Windows Win32K kernel graphics subsystem allows any locally authenticated low-privilege user to disclose sensitive kernel memory contents without user interaction. The flaw spans an exceptionally broad range of affected Windows versions, from Server 2012 through Windows 11 25H2, significantly widening enterprise exposure. No active exploitation has been confirmed in CISA KEV and no public exploit has been identified at time of analysis, though kernel memory disclosure from Win32K is strategically valuable as a KASLR-bypass primitive in chained privilege escalation attacks.

Heap-based buffer overflow in the Windows LDAP client implementation enables remote code execution against any Windows system that initiates an LDAP connection to an attacker-controlled server. The vulnerability spans an exceptionally wide set of affected Windows versions - from Windows Server 2012 through Windows 11 26H1 and Windows Server 2025 - making the potential attack surface very large. Microsoft has released patches via the standard update channel; no public exploit code or CISA KEV listing has been identified at time of analysis, though the PR:N/UI:R vector and high CIAlll impact make this a credible priority for patching.

Remote code execution in Microsoft's Local Security Authority Server (lsasrv) affects virtually every supported Windows client and server release, from Windows Server 2012 through Server 2025 and Windows 10 through Windows 11 26H1. The heap-based buffer overflow (CWE-122) is reachable over the network by any low-privileged authenticated attacker - aligning with the CVSS PR:L designation and the description's 'authorized attacker' language - enabling full system compromise. No public exploit identified at time of analysis; vendor patch is available via MSRC.

Privilege escalation in the Windows Remote Access Connection Manager (RASMAN) service enables a low-privileged local attacker to achieve SYSTEM-level access through a heap-based buffer overflow. Affecting Windows 10 (from version 1809), Windows 11 (through version 26H1), Windows Server 2019 through Server 2025, this vulnerability requires only a valid local user account and no user interaction. Microsoft has released patches via MSRC; no public exploit code or confirmed active exploitation has been identified at time of analysis.

Remote information disclosure in the Windows SMB Client affects every actively-supported Windows 10, Windows 11, and Windows Server release from 2016 through 2025, exposing potentially sensitive memory contents to unauthenticated network attackers via a CWE-125 out-of-bounds read (CVSS 7.5). The flaw resides in the SMB client stack and is triggered when a vulnerable Windows host processes a crafted response from an attacker-controlled SMB server, requiring no authentication or user interaction from the attacker's perspective. No public exploit has been identified at time of analysis and CISA has not added this to the Known Exploited Vulnerabilities catalog; however, the extraordinary breadth of affected products and the vendor-confirmed patch make this a standard patch-cycle priority.

Remote code execution via heap-based buffer overflow in the Windows RPC Runtime affects every supported Windows desktop and server release from Windows 10 1607 through Windows 11 26H1 and Windows Server 2012 through Server 2025. An unauthenticated remote attacker who can reach an exposed RPC endpoint can corrupt heap memory and achieve arbitrary code execution, yielding full confidentiality, integrity, and availability compromise of the target system. No public exploit code or CISA KEV listing has been identified at time of analysis; however, the breadth of affected versions, combined with network accessibility and no authentication requirement, elevates operational priority for internet-facing and laterally-reachable Windows infrastructure.

Local privilege escalation in the Windows Kernel affects Windows 11 (23H2 through 26H1) and Windows Server 2025, exploitable by any authenticated local user to gain SYSTEM-level access. The root mechanism is a use-after-free condition triggered through a race condition in kernel memory management, classified under CWE-362. No public exploit code has been identified and this vulnerability does not appear in the CISA KEV catalog at time of analysis; however, the kernel-level impact (C:H/I:H/A:H) makes it a high-priority patch target in enterprise and server environments.

Privilege escalation in Windows Schannel via a use-after-free (CWE-416) memory corruption flaw allows a locally authenticated, low-privileged attacker to elevate privileges - likely to SYSTEM - on Windows 11 and Windows Server 2025 systems. The CVSS 7.8 vector (AV:L/AC:L/PR:L/UI:N) reflects reliable, low-complexity exploitation requiring only a standard user account and no user interaction. No public exploit has been identified at time of analysis, and the vulnerability is not listed in the CISA KEV catalog.

Privilege escalation via use-after-free in the Windows DNS service exposes a broad range of Windows Server and Windows 10 systems to network-based attacks by unauthenticated adversaries. The race condition root cause (CWE-362) forces high attack complexity, as an attacker must win a precise timing window to corrupt freed memory and gain elevated privileges, reflected in the CVSS 8.1 score. No active exploitation has been confirmed by CISA KEV and no public exploit code has been identified at time of analysis, though the full C/I/A impact across thirteen distinct product versions from Windows Server 2012 through Server 2025 warrants prompt patching.

Privilege escalation in Windows License Manager exposes a critical authenticated-but-low-privileged local attacker path to full SYSTEM-level control across a wide range of Windows client and server builds. The root cause (CWE-306) is a missing authentication gate on a privileged License Manager function - an authorized standard user can invoke it without satisfying the elevated-privilege check that should protect it. Microsoft has released patches covering Windows 10 (1607 through 22H2), Windows 11 (23H2 through 26H1), and Windows Server 2016 through 2025; no public exploit code or CISA KEV listing has been identified at time of analysis.

Privilege escalation in Windows DHCP Server allows a locally authenticated attacker to gain SYSTEM-level privileges by exploiting a symlink/link-following flaw (CWE-59). Affected products span Windows Server 2012 through Windows Server 2025 and Windows 10 (1607/1809), all receiving patches in this advisory cycle. No public exploit code or CISA KEV listing is identified at time of analysis, but the low attack complexity and broad version coverage make this a meaningful patching priority for any Windows Server environment running the DHCP Server role.

Privilege escalation in the Windows Graphics Kernel exposes a use-after-free condition that allows a low-privileged local user to achieve SYSTEM-level code execution. Affected products span Windows 10, Windows 11, and Windows Server 2016 through 2025 across 15 distinct version ranges, making the blast radius extremely broad. No public exploit has been identified at time of analysis, and Microsoft has released patches addressing all affected builds via the MSRC advisory.