Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local privilege escalation requiring an existing low-privileged account (PR:L, AV:L), no user interaction, yielding full SYSTEM-level compromise, so C/I/A all High.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
Improper access control in Windows Operating Systems allows an authorized attacker to elevate privileges locally.
AnalysisAI
Elevation of privilege in Microsoft Windows (Windows 10 1809/21H2/22H2, Windows 11 24H2/25H2/26H1, and Windows Server 2019/2022/2025) allows a locally authenticated attacker to escalate to higher privileges via an improper access control weakness (CWE-284). An attacker who already holds a low-privilege foothold on the host can gain full confidentiality, integrity, and availability impact over the system. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to already hold valid low-privileged local access to the target Windows host (CVSS PR:L), the ability to execute code locally (AV:L - no remote or network path), and no user interaction (UI:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score is 7.8 (High) with vector AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H: local attack vector, low complexity, low privileges required, no user interaction, and full high impact to all three properties. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who has already obtained low-privilege access to a Windows host - for example via a phished user account, a compromised service account, or a foothold from another vulnerability - runs a crafted local operation that abuses the improper access control to bypass the authorization check and gain SYSTEM-level or administrative privileges. From there they disable security tooling, install persistence, and move laterally. … |
| Remediation | Patch available per vendor advisory: apply the Microsoft security update for the affected OS via the MSRC entry at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50335, which lists the exact patched build for each Windows 10/11 and Windows Server release; deploy through Windows Update, WSUS, or your managed pipeline (SCCM/Intune) as part of the current Patch Tuesday cycle. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Windows 10 (1809/21H2/22H2), Windows 11 (24H2/25H2/26H1), and Windows Server (2019/2022/2025) systems to identify affected assets. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
More in Windows 10 Version 1809
View allLocal privilege escalation in Microsoft Active Directory Federation Services (AD FS) lets an already-authenticated low-p
Local privilege escalation in the Microsoft Windows Kernel allows an unauthorized attacker to gain elevated (SYSTEM-leve
Local privilege escalation in the Windows Kernel lets an already-authenticated attacker corrupt kernel memory via a use-
Local privilege escalation in the Windows Win32K kernel subsystem (CWE-122 heap-based buffer overflow) lets an already-a
Local code execution in the Windows DHCP Client service stems from a use-after-free (CWE-416) memory-corruption flaw aff
Local code execution in the Microsoft Message Queuing (MSMQ) Queue Manager affects a broad range of Windows client and s
Remote code execution in the Microsoft Windows DHCP Server role allows an unauthenticated network attacker to run arbitr
Elevation of privilege in the Windows NTFS file-system driver lets an already-authenticated local user escalate to SYSTE
Local code execution in the Windows Media component of supported Windows 10, Windows 11, and Windows Server (2016 throug
Elevation of privilege in the Windows Hyper-V virtual network switch (VMSwitch) lets an authenticated attacker operating
Remote code execution in the Windows Server Network driver stems from a race condition (CWE-362) that lets an unauthoriz
Remote code execution in Microsoft Windows Remote Desktop (RDP) allows an unauthorized network attacker to run arbitrary
Same weakness CWE-284 – Improper Access Control
View allSame technique Authentication Bypass
View allShare
External POC / Exploit Code
Leaving vuln.today
EUVD-2026-43897
GHSA-r43c-rm8g-w8c6