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CVE-2026-42980-POC — Public exploit and research material for CVE-2026-42980, a Windows kernel WMI integer-underflow vulnerability enabling local privilege escalation to SYSTEM. Includes source code, build scripts, and bilingual write-ups for defensive research. | Kitploit
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GitHubg4sp4rcs/cve-2026-42980-poc

CVE-2026-42980-POC

Public exploit and research material for CVE-2026-42980, a Windows kernel WMI integer-underflow vulnerability enabling local privilege escalation to SYSTEM. Includes source code, build scripts, and bilingual write-ups for defensive research.

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601812 months agoReviewed by Kitploit

CVE-2026-42980 Public Disclosure

This repository contains the public disclosure material for CVE-2026-42980, a Windows kernel WMI integer-underflow vulnerability that can be exploited for local privilege escalation to NT AUTHORITY\SYSTEM on vulnerable lab builds.

SYSTEM shell proof

Full write-up

  • English article
  • Artículo en español

Repository layout

root@kitploit:~
public/
  README.md
  README.es.md
  writeup-en.md
  writeup-es.md
  build.ps1
  Makefile
  src/
    cve_2026_42980_lpe.c
    helpers.c
    wmi_guids.h
  assets/
    photo-poc-system.jpg

Build

Requirements:

  • Windows
  • Visual Studio Build Tools with MSVC x64
  • PowerShell

Build with:

root@kitploit:~
powershell -NoProfile -ExecutionPolicy Bypass -File .\build.ps1

Or:

root@kitploit:~
nmake /f Makefile

The binary is generated at:

root@kitploit:~
build\poc.exe

Safety notice

This code is provided for education, defensive research, and authorized testing only. Run it exclusively in isolated lab systems you own or are explicitly permitted to test.

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