5.5
MEDIUM
CVSS 3.1
CVE-2019-1142
Microsoft .NET Framework Privilege Elevation Vulnerability
Overview
Description
An elevation of privilege vulnerability exists when the .NET Framework common language runtime (CLR) allows file creation in arbitrary locations, aka '.NET Framework Elevation of Privilege Vulnerability'.
Details
INFO
Published Date :
Sept. 11, 2019, 10:15 p.m.
Last Modified :
June 17, 2026, 2:27 a.m.
Remotely Exploit :
No
Source :
[email protected]
Impact
Affected Products
The following products are affected by CVE-2019-1142
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework
for assessing the severity of vulnerabilities in software and systems.
We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | LOW | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
This vulnerability allows for a privilege elevation. Applying the latest security updates will remediate this issue.
- Apply the appropriate cumulative update or security update for the affected .NET Framework versions.
- Reboot the system if prompted.
Public PoC/Exploit Available at Github
CVE-2019-1142 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2019-1142.
| URL | Resource |
|---|---|
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1142 | Patch Vendor Advisory |
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1142 | Patch Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-1142 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2019-1142
weaknesses.
CAPEC-64: Using Slashes and URL Encoding Combined to Bypass Validation Logic Using Slashes and URL Encoding Combined to Bypass Validation Logic
CAPEC-76: Manipulating Web Input to File System Calls Manipulating Web Input to File System Calls
CAPEC-78: Using Escaped Slashes in Alternate Encoding Using Escaped Slashes in Alternate Encoding
CAPEC-79: Using Slashes in Alternate Encoding Using Slashes in Alternate Encoding
CAPEC-126: Path Traversal Path Traversal
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
A windows kernel driver to Block symbolic link exploit used for privilege escalation.
symlink exploitation protection kernel-driver
C
Updated: 11 months, 3 weeks ago
14 stars
6 fork
6 watcher
Born at : June 3, 2020, 9:11 p.m.
This repo has been linked 20 different CVEs too.
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-1142 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-1142 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 4.5.2', 'versions': [{'status': 'affected', 'version': 'Windows Server 2012'}, {'status': 'affected', 'version': 'Windows Server 2012 (Server Core installation)'}, {'status': 'affected', 'version': 'Windows 8.1 for 32-bit systems'}, {'status': 'affected', 'version': 'Windows 8.1 for x64-based systems'}, {'status': 'affected', 'version': 'Windows Server 2012 R2'}, {'status': 'affected', 'version': 'Windows RT 8.1'}, {'status': 'affected', 'version': 'Windows Server 2012 R2 (Server Core installation)'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2', 'versions': [{'status': 'affected', 'version': 'Windows Server 2012'}, {'status': 'affected', 'version': 'Windows Server 2012 (Server Core installation)'}, {'status': 'affected', 'version': 'Windows 8.1 for 32-bit systems'}, {'status': 'affected', 'version': 'Windows 8.1 for x64-based systems'}, {'status': 'affected', 'version': 'Windows Server 2012 R2'}, {'status': 'affected', 'version': 'Windows RT 8.1'}, {'status': 'affected', 'version': 'Windows Server 2012 R2 (Server Core installation)'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 4.8 on Windows Server 2012', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 4.8 on Windows Server 2012 (Server Core installation)', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 4.8 on Windows 8.1 for 32-bit systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 4.8 on Windows 8.1 for x64-based systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 4.8 on Windows Server 2012 R2', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 4.8 on Windows RT 8.1', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation)', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 4.8 on Windows Server 2016', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation)', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 4.8 on Windows 10 Version 1703 for 32-bit Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 4.8 on Windows 10 Version 1703 for x64-based Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for 32-bit Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for x64-based Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for 32-bit Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for x64-based Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 4.8 on Windows Server, version 1803 (Server Core Installation)', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 (Server Core installation)', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for 32-bit Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for x64-based Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1903 (Server Core installation)', 'versions': [{'status': 'affected', 'version': '1903'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 (Server Core installation)', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 3.5', 'versions': [{'status': 'affected', 'version': 'Windows Server 2012'}, {'status': 'affected', 'version': 'Windows Server 2012 (Server Core installation)'}, {'status': 'affected', 'version': 'Windows 8.1 for 32-bit systems'}, {'status': 'affected', 'version': 'Windows 8.1 for x64-based systems'}, {'status': 'affected', 'version': 'Windows Server 2012 R2'}, {'status': 'affected', 'version': 'Windows Server 2012 R2 (Server Core installation)'}, {'status': 'affected', 'version': 'Windows 10 for 32-bit Systems'}, {'status': 'affected', 'version': 'Windows 10 for x64-based Systems'}, {'status': 'affected', 'version': 'Windows Server 2016'}, {'status': 'affected', 'version': 'Windows 10 Version 1607 for 32-bit Systems'}, {'status': 'affected', 'version': 'Windows 10 Version 1607 for x64-based Systems'}, {'status': 'affected', 'version': 'Windows Server 2016 (Server Core installation)'}, {'status': 'affected', 'version': 'Windows 10 Version 1703 for 32-bit Systems'}, {'status': 'affected', 'version': 'Windows 10 Version 1703 for x64-based Systems'}, {'status': 'affected', 'version': 'Windows 10 Version 1709 for 32-bit Systems'}, {'status': 'affected', 'version': 'Windows 10 Version 1709 for x64-based Systems'}, {'status': 'affected', 'version': 'Windows 10 Version 1803 for 32-bit Systems'}, {'status': 'affected', 'version': 'Windows 10 Version 1803 for x64-based Systems'}, {'status': 'affected', 'version': 'Windows Server, version 1803 (Server Core Installation)'}]}] -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1142 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CWE Remap by [email protected]
Aug. 24, 2020
Action Type Old Value New Value Changed CWE CWE-269 CWE-22 -
Initial Analysis by [email protected]
Sep. 12, 2019
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:N/I:P/A:N) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N Changed Reference Type https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1142 No Types Assigned https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1142 Patch, Vendor Advisory Added CWE CWE-269 Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:4.6:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.6.1:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:4.8:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.8:*:*:*:*:*:*:* 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:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:4.5.2:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_8.1:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.