CVE-2026-70084
Analyzed Analyzed - Analysis Complete

Improper Access Control in Windows Projected File System

Publication date: 2026-10-13

Last updated on: 2026-10-28

Assigner: Microsoft Corporation

Description
Improper access control in Windows Projected File System allows an authorized attacker to disclose information locally.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-10-13
Last Modified
2026-10-28
Generated
2026-11-08
AI Q&A
2026-10-15
EPSS Evaluated
2026-11-07
NVD
CVE-2026-70084
EUVD
EUVD-2026-100119

Affected Vendors & Products

Showing 21 associated CPEs
Vendor Product Version / Range
microsoft windows_10_1809 to 10.0.17763.9376 (exc)
microsoft windows_10_1809 to 10.0.17763.9376 (exc)
microsoft windows_10_21h2 to 10.0.19044.7807 (exc)
microsoft windows_10_21h2 to 10.0.19044.7807 (exc)
microsoft windows_10_21h2 to 10.0.19044.7807 (exc)
microsoft windows_11_23h2 to 10.0.22631.7652 (exc)
microsoft windows_11_23h2 to 10.0.22631.7652 (exc)
microsoft windows_11_24h2 to 10.0.26100.9711 (exc)
microsoft windows_11_24h2 to 10.0.26100.9711 (exc)
microsoft windows_11_25h2 to 10.0.26200.9711 (exc)
microsoft windows_11_25h2 to 10.0.26200.9711 (exc)
microsoft windows_11_26h1 to 10.0.28000.3231 (exc)
microsoft windows_11_26h1 to 10.0.28000.3231 (exc)
microsoft windows_11_26h2 to 10.0.26300.9711 (exc)
microsoft windows_11_26h2 to 10.0.26300.9711 (exc)
microsoft windows_server_2019 to 10.0.17763.9376 (exc)
microsoft windows_server_2025 to 10.0.26100.33650 (exc)
microsoft windows_server_2022 to 10.0.20348.5761 (exc)
microsoft windows_10_22h2 to 10.0.19045.7807 (exc)
microsoft windows_10_22h2 to 10.0.19045.7807 (exc)
microsoft windows_10_22h2 to 10.0.19045.7807 (exc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability is an improper access control issue in the Windows Projected File System. An authorized attacker could exploit it to disclose information locally on affected systems.

Impact Analysis

An attacker with local access could read sensitive information stored on your system. This may include personal data, credentials, or other confidential files if they are accessible through the Projected File System.

Compliance Impact

This vulnerability could lead to unauthorized access to personal or sensitive data, potentially violating GDPR, HIPAA, or other privacy regulations. Organizations must address it to maintain compliance and protect user data.

Mitigation Strategies

Apply the latest security updates from Microsoft to address the improper access control in Windows Projected File System. Monitor Microsoft's update guide for patches specific to affected Windows versions.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-70084. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart

Security Radar

News mentioning this vulnerability
Loading related security news...