Elevation of Privileges in Microsoft Windows App Store
CVE-2026-119987

7.8HIGH

Key Information:

Vendor

Microsoft
Status
Windows 10 Version 21h2
Windows 10 Version 22h2
Windows 11 Version 23h2
Windows 11 Version 23h2
Vendor
CVE Published:
10 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-119987?

A vulnerability exists in the Microsoft Windows App Store that allows an authorized attacker to exploit an untrusted search path, potentially enabling the attacker to elevate their privileges locally. This poses a risk of unauthorized modifications and access to sensitive areas of the operating system. Users and administrators are advised to apply recommended patches to mitigate this vulnerability.

Affected Version(s)

Windows 10 Version 21H2 32-bit Systems 10.0.19044.0 < 10.0.19044.7807

Windows 10 Version 22H2 32-bit Systems 10.0.19045.0 < 10.0.19045.7807

Windows 11 version 23H2 ARM64-based Systems 10.0.22631.0 < 10.0.22631.7652

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-119987-writeup
Created by karollooool

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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