SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2019-0552

An elevation of privilege exists in Windows COM Desktop Broker, aka "Windows COM Elevation of Privilege Vulnerability." This affects Windows Server 2012 R2, Windows RT 8.1, Windows Server 2019, Windows Server 2016, Windows 8.1, Windows 10, Windows 10…

EXPLOIT ✓HIGH 8.8EPSS 2.54%

Does this matter?

A public exploit is published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 2.5%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use.

Description

An elevation of privilege exists in Windows COM Desktop Broker, aka "Windows COM Elevation of Privilege Vulnerability." This affects Windows Server 2012 R2, Windows RT 8.1, Windows Server 2019, Windows Server 2016, Windows 8.1, Windows 10, Windows 10 Servers.

CVSS 3.0
8.8 HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS
2.54% probability · 85th percentile
Public exploits
1 in Exploit-DB · verified · first 14 January 2019
CISA KEV
Not listed
Weakness
CWE-863
Affected
microsoft/windows 10 · microsoft/windows 8.1 · microsoft/windows rt 8.1 · microsoft/windows server 2012 · microsoft/windows server 2016 · microsoft/windows server 2019
Source
secure@microsoft.com
EPSS trend
0%3%5%27 October 2026: 2.54%27 October 202627 October 2026

EPSS 2.5% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-46162source ↗Microsoft Windows 10 - COM Desktop Broker Privilege Escalationwindows · Google Security Researchlocal14 January 2019yes

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.