EUVD-2026-44148
GHSA-9758-j9jf-94jr
Severity by source
AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Local EoP requiring an existing low-privileged foothold (AV:L, PR:L), no user interaction, low complexity, crossing into the elevated DWM context (S:C) for full SYSTEM-level C/I/A impact.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
Heap-based buffer overflow in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
AnalysisAI
Local privilege escalation in the Windows Desktop Window Manager (DWM) lets an already-authenticated, low-privileged attacker corrupt heap memory (CWE-122) to gain SYSTEM-level control across Windows 10 (1607 through 22H2), Windows 11 (24H2/25H2/26H1), and Windows Server 2016 through 2025. The CVSS 3.1 score of 8.8 reflects a scope change into a higher-integrity context with full confidentiality, integrity, and availability impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to already possess local, authenticated code-execution on the target with at least low privileges (CVSS PR:L, AV:L) - that is, the ability to run a process that can call into the Desktop Window Manager's graphics/composition interfaces within an interactive session. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H describes a local, low-complexity attack requiring low privileges and no user interaction, with a scope change and full C/I/A impact - a classic reliable local privilege-escalation profile scoring 8.8. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who has already gained a low-privileged foothold on a Windows host - for example via a phishing payload or a compromised standard user account on a shared terminal server - invokes the vulnerable Desktop Window Manager interface with crafted parameters that overflow a heap buffer. By grooming the heap and controlling the corrupted data, they redirect execution within the elevated DWM context to run code as SYSTEM. … |
| Remediation | Apply the Microsoft security update for CVE-2026-50692 as documented in the MSRC Update Guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50692; this is Patch available per vendor advisory (consult the MSRC page for the exact KB article and build number matching each affected SKU, since the input does not enumerate per-SKU fixed versions). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Windows 10 (versions 1607-22H2), Windows 11 (versions 24H2/25H2/26H1), and Windows Server 2016-2025 systems to assess organizational exposure and determine patch deployment readiness. …
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Same weakness CWE-122 – Heap-based Buffer Overflow
View allSame technique Heap Overflow
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External POC / Exploit Code
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