CVE-2026-69783

Awaiting Analysis Awaiting Analysis - Queue

Windows Update Path Traversal Elevation of Privilege

Publication date: 2026-10-13

Last updated on: 2026-10-13

Assigner: Microsoft Corporation

Description

External control of file name or path in Windows Update allows an authorized attacker to elevate privileges locally.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-10-13

Last Modified

2026-10-13

Generated

2026-10-19

AI Q&A

2026-10-14

EPSS Evaluated

2026-10-18

NVD

CVE-2026-69783

EUVD

EUVD-2026-99891

Affected Vendors & Products

Vendor	Product	Version / Range
Microsoft	Windows	11 version 23H2 10.0.22631.0
Microsoft	Windows	11 Version 23H2 10.0.22631.0
Microsoft	Windows	11 Version 24H2 10.0.26100.0
Microsoft	Windows	11 Version 25H2 10.0.26200.0
Microsoft	Windows	11 version 26H1 10.0.28000.0
Microsoft	Windows	11 Version 26H2 10.0.26300.0
Microsoft	Windows	Server 2025 10.0.26100.0
Microsoft	Windows	Server 2025 (Server Core installation) 10.0.26100.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-73	The product allows user input to control or influence paths or file names that are used in filesystem operations.

Attack-Flow Graph

Executive Summary

This vulnerability allows an authorized attacker to manipulate file names or paths in Windows Update, enabling them to elevate their privileges locally on a system.

Impact Analysis

An attacker could exploit this to gain higher-level access on your system, potentially allowing them to install programs, view or delete data, or create new accounts with full user rights.

Compliance Impact

This vulnerability allows local privilege escalation through Windows Update, which could enable unauthorized access to sensitive systems. For compliance with GDPR, this may increase risks of unauthorized data access or processing, potentially violating Article 32 (security of processing). Under HIPAA, it could compromise protected health information integrity if exploited on systems handling such data.

Mitigation Strategies

Apply the latest Windows updates from Microsoft Update to patch the vulnerability. Monitor Microsoft's security advisories for patches and install them promptly.

Hi! I’m here to help you understand CVE-2026-69783. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70