CVE-2026-20805CISA KEV: Actively Exploited

Microsoft Windows Information Disclosure Vulnerability

Published Jan 13, 2026·Updated Jan 13, 2026

Description

Microsoft Windows Desktop Windows Manager contains an information disclosure vulnerability that allows an authorized attacker to disclose information locally.

Public Exploits & PoCs5 found

PoC: SCTT-2026-33-0002-DWM-Visual-Field-Singularity

Microsoft just patched CVE-2026-20805 and CVE-2026-20871 in January 2026 to stop "Information Disclosure" and "Use-After-Free" bugs in DWM. They think they've secured the "Visual Boundary." We are about to prove that a 33-layer resonance can turn those visual buffers into a liquid pipeline for SCTT-2026-33-0002.

PoC: -SCTT-2026-33-0002-DWM-Visual-Field-Singularity

### 📡 Theoretical Classification **ID:** SCTT-2026-33-0002 **Researcher:** Americo Simoes (SimoesCTT) **Physics:** Theorem 4.2 - Turbulent Phase Transition (TPT) **Constant:** α = 0.0302011 **Target:** Desktop Window Manager (dwm.exe) / Windows Graphics Component **Obsoletes:** CVE-2026-20805 & CVE-2026-20871 (Visual-Latch Patches)

PoC: Inside-CVE-2026-20805-How-a-Windows-DWM-Flaw-Exposed-Sensitive-Data

CVE‑2026‑20805: A Windows Desktop Window Manager flaw causing local information disclosure. Requires low privileges, no user interaction. Rated CVSS 5.5 (Medium). Actively exploited and listed in CISA KEV; patch released January 2026.

PoC: CVE-2026-20805-PoC

The PoC of information disclosure in Microsoft Desktop Windows Management.

PoC: CVE-2026-20805-POC

# CVE-2026-20805 PoC Prueba de concepto para la vulnerabilidad de divulgación de información en **Desktop Windows Manager (dwm.exe)** de Microsoft. ## 📋 Resumen de la Vulnerabilidad - **ID:** CVE-2026-20805 - **Producto:** Microsoft Windows

References

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