7.5
HIGH
CVSS 3.1
CVE-2019-1255
Microsoft Defender Denial of Service Vulnerability
Overview
Description
A denial of service vulnerability exists when Microsoft Defender improperly handles files, aka 'Microsoft Defender Denial of Service Vulnerability'.
Details
INFO
Published Date :
Sept. 23, 2019, 8:15 p.m.
Last Modified :
June 17, 2026, 2:28 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Impact
Affected Products
The following products are affected by CVE-2019-1255
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 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
This information is provided by the 3rd party feeds.
- See vendor advisory.
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-2019-1255.
| URL | Resource |
|---|---|
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1255 | Patch Vendor Advisory |
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1255 | 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-2019-1255 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-2019-1255
weaknesses.
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-1255 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-1255 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 Security Essentials', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft System Center', 'versions': [{'status': 'affected', 'version': '2012 Endpoint Protection'}, {'status': 'affected', 'version': 'Endpoint Protection'}, {'status': 'affected', 'version': '2012 R2 Endpoint Protection'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft Forefront Endpoint Protection', 'versions': [{'status': 'affected', 'version': '2010'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows 7 for 32-bit Systems', 'versions': [{'status': 'affected', 'version': 'Service Pack 1'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows 7 for x64-based Systems', 'versions': [{'status': 'affected', 'version': 'Service Pack 1'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows Server 2008 R2 for x64-based Systems (Server Core installation)', 'versions': [{'status': 'affected', 'version': 'Service Pack 1'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows Server 2008 R2 for Itanium-Based Systems', 'versions': [{'status': 'affected', 'version': 'Service Pack 1'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows Server 2008 R2 for x64-based Systems', 'versions': [{'status': 'affected', 'version': 'Service Pack 1'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows Server 2008 for 32-bit Systems (Server Core installation)', 'versions': [{'status': 'affected', 'version': 'Service Pack 2'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows Server 2012', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows Server 2012 (Server Core installation)', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows 8.1 for 32-bit systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows 8.1 for x64-based systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows Server 2012 R2', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows RT 8.1', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows Server 2012 R2 (Server Core installation)', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows 10 for 32-bit Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows 10 for x64-based Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows Server 2016', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows 10 Version 1607 for 32-bit Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows 10 Version 1607 for x64-based Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows Server 2016 (Server Core installation)', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows 10 Version 1703 for 32-bit Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows 10 Version 1703 for x64-based Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows 10 Version 1709 for 32-bit Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows 10 Version 1709 for x64-based Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows 10 Version 1803 for 32-bit Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows 10 Version 1803 for x64-based Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows Server, version 1803 (Server Core Installation)', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows 10 Version 1803 for ARM64-based Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows 10 Version 1809 for 32-bit Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows 10 Version 1809 for x64-based Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows 10 Version 1809 for ARM64-based Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows Server 2019', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows Server 2019 (Server Core installation)', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows 10 Version 1709 for ARM64-based Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows 10 Version 1903 for 32-bit Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows 10 Version 1903 for x64-based Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows 10 Version 1903 for ARM64-based Systems', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows Server, version 1903 (Server Core installation)', 'versions': [{'status': 'affected', 'version': 'unspecified'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows Server 2008 for Itanium-Based Systems', 'versions': [{'status': 'affected', 'version': 'Service Pack 2'}]}, {'vendor': 'Microsoft', 'product': 'Windows Defender on Windows Server 2008 for 32-bit Systems', 'versions': [{'status': 'affected', 'version': 'Service Pack 2'}]}] -
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-2019-1255 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
Sep. 09, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:microsoft:forefront_endpoint_protection_2010:-:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:security_essentials:-:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:system_center_endpoint_protection:*:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:system_center_endpoint_protection_2012:-:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:system_center_endpoint_protection_2012:r2:*:*:*:*:*:*:* OR *cpe:2.3:a:microsoft:forefront_endpoint_protection_2010:-:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:security_essentials:-:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:system_center_endpoint_protection:*:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:system_center_endpoint_protection:2012:-:*:*:*:*:*:* *cpe:2.3:a:microsoft:system_center_endpoint_protection:2012:r2:*:*:*:*:*:* -
CWE Remap by [email protected]
Aug. 24, 2020
Action Type Old Value New Value Changed CWE CWE-20 NVD-CWE-noinfo -
Initial Analysis by [email protected]
Sep. 24, 2019
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1255 No Types Assigned https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1255 Patch, Vendor Advisory Added CWE CWE-20 Added CPE Configuration AND OR *cpe:2.3:a:microsoft:windows_defender:-:*:*:*:*:*:*:* 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_10:1809:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:itanium:* cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* 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:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:microsoft:forefront_endpoint_protection_2010:-:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:security_essentials:-:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:system_center_endpoint_protection:*:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:system_center_endpoint_protection_2012:-:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:system_center_endpoint_protection_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.