CVE-2019-1184
MediumPublic exploitAn elevation of privilege vulnerability exists when Windows Core Shell COM Server Registrar improperly handles COM calls.
Published Aug 14, 2019 · Updated Feb 20, 2026
Key Facts
Patch immediately- CVE-2019-1184 is a medium-severity vulnerability (CVSS 6.7 v3.1) affecting Windows 10 (Microsoft), Windows 10 1803 (Microsoft), Windows 10 1809 (Microsoft) and 4 more products.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 70% probability of exploitation in the next 30 days.
- Fixed versions are available, including Windows 10 publication, Windows 10 1803 publication, Windows 10 1809 publication.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
6.7
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
70%
Higher than 99.3% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2019-1184 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
An elevation of privilege vulnerability exists when Windows Core Shell COM Server Registrar improperly handles COM calls. An attacker who successfully exploited this vulnerability could potentially set certain items to run at a higher level and thereby elevate permissions. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system. The update addresses this vulnerability by correcting unprotected COM calls.
Affected Products
14 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Windows 10Microsoft | 1803, 1809, 1903 | publication |
| Windows 10 1803Microsoft | See advisory | publication |
| Windows 10 1809Microsoft | See advisory | publication |
| Windows Server 1803Microsoft | See advisory | publication |
| Windows Server 1903Microsoft | See advisory | publication |
Patched Releases
Windows 10
publication
Windows 10 1803
publication
Windows 10 1809
publication
Windows Server 1803
publication
Windows Server 1903
publication
Windows Server 2019
publication
Timeline
Publicly disclosed
Aug 14, 2019
Last updated
Feb 20, 2026
References
FAQ
Common Questions.
An elevation of privilege vulnerability exists when Windows Core Shell COM Server Registrar improperly handles COM calls.
Affected: Windows 10 (Microsoft) versions 1803, 1809, 1903; Windows 10 1803 (Microsoft); Windows 10 1809 (Microsoft), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Windows 10 publication, Windows 10 1803 publication, Windows 10 1809 publication.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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