CVE-2019-1170

Windows NTFS Elevation of Privilege Vulnerability

Published Aug 14, 2019 CVSS 3.1 · 7.9 High EPSS 2.4% KEV · Not listed

Description

An elevation of privilege vulnerability exists when reparse points are created by sandboxed processes allowing sandbox escape. An attacker who successfully exploited the vulnerability could use the sandbox escape to elevate privileges on an affected system.
To exploit the vulnerability, an attacker would first have to log on to the system, and then run a specially crafted application to take control over the affected system.
The security update addresses the vulnerability by preventing sandboxed processes from creating reparse points targeting inaccessible files.

Analysis

No analysis available yet

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Microsoft

Windows 10 Version 1809

affected

Version	Status	Constraints
`10.0.0`	affected	< publication

Microsoft

Windows Server 2019

affected

Version	Status	Constraints
`10.0.0`	affected	< publication

Microsoft

Windows Server 2019 (Server Core installation)

affected

Version	Status	Constraints
`10.0.0`	affected	< publication

Microsoft

Windows 10 Version 1903 for 32-bit Systems

affected

Version	Status	Constraints
`10.0.0`	affected	< publication

Microsoft

Windows 10 Version 1903 for x64-based Systems

affected

Version	Status	Constraints
`10.0.0`	affected	< publication

Microsoft

Windows 10 Version 1903 for ARM64-based Systems

affected

Version	Status	Constraints
`10.0.0`	affected	< publication

Microsoft

Windows Server, version 1903 (Server Core installation)

affected

Version	Status	Constraints
`10.0.0`	affected	< publication

Configuration 1 [-]

OR	cpe:2.3:o:microsoft:windows_10:1809:::::::*
	cpe:2.3:o:microsoft:windows_10:1903:::::::*
	cpe:2.3:o:microsoft:windows_server_2016:1903:::::::*
	cpe:2.3:o:microsoft:windows_server_2019:-:::::::*

No data.

No data available yet.

Remediation

No remediation available yet

Tracking

Advisories

Source	ID	Title
EUVD	EUVD-2019-9741	An elevation of privilege vulnerability exists when reparse points are created by sandboxed processes allowing sandbox escape. An attacker who successfully exploited the vulnerability could use the sandbox escape to elevate privileges on an affected system. To exploit the vulnerability, an attacker would first have to log on to the system, and then run a specially crafted application to take control over the affected system. The security update addresses the vulnerability by preventing sandboxed processes from creating reparse points targeting inaccessible files.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact High

Integrity Impact Low

Availability Impact Low

User Interaction None

No CVSS v3.0

Access Vector Local

Access Complexity Low

Authentication None

Confidentiality Impact Complete

Integrity Impact Complete

Availability Impact Complete

This CVE is not in the KEV list.

Exploit prediction score: 2.4% (2.433% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
http://packetstormsecurity.com/files/154192/Microsoft-Windows-SET_REPARSE_POINT_EX-Mount-Point-Security-Feature-Bypass.html
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1170

History

Feb 20, 2026 9:00 PM Description updated View changes

Type	Values Removed	Values Added
Description	An elevation of privilege vulnerability exists when reparse points are created by sandboxed processes allowing sandbox escape. An attacker who successfully exploited the vulnerability could use the sandbox escape to elevate privileges on an affected system. To exploit the vulnerability, an attacker would first have to log on to the system, and then run a specially crafted application to take control over the affected system. The security update addresses the vulnerability by preventing sandboxed processes from creating reparse points targeting inaccessible files.	An elevation of privilege vulnerability exists when reparse points are created by sandboxed processes allowing sandbox escape. An attacker who successfully exploited the vulnerability could use the sandbox escape to elevate privileges on an affected system. To exploit the vulnerability, an attacker would first have to log on to the system, and then run a specially crafted application to take control over the affected system. The security update addresses the vulnerability by preventing sandboxed processes from creating reparse points targeting inaccessible files.