No exploitation reportedFix available

CVE-2019-0856

No exploitation reported by the sources we read.

Published2019-04-09

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A remote code execution vulnerability exists when Windows improperly handles objects in memory, aka 'Windows Remote Code Execution Vulnerability'.

Timeline

dates in UTC

2019-04-0921:29CVE publishedNVD
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-0856?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-0856?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Microsoft windows 10

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD
1607.x	= 1607	no fix published	NVD
1703.x	= 1703	no fix published	NVD
1709.x	= 1709	no fix published	NVD
1803.x	= 1803	no fix published	NVD
1809.x	= 1809	no fix published	NVD

Microsoft windows server 2016

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD
1709.x	= 1709	no fix published	NVD
1803.x	= 1803	no fix published	NVD

Microsoft windows server 2008

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD
—	= r2	no fix published	NVD

5 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

portal.msrc.microsoft.comPatch · Vendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.07.2read 2026-10-23
NVDCVSS 2.09read 2026-10-23
FIRST EPSSEPSS score19.4 %read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Published: 2019-04-09
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2019-0856?

A remote code execution vulnerability exists when Windows improperly handles objects in memory, aka 'Windows Remote Code Execution Vulnerability'.

Is CVE-2019-0856 actively exploited?

Active exploitation of CVE-2019-0856 has not been confirmed. Its EPSS score was 19.4% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-0856?

CVE-2019-0856 has a CVSS v3 base score of 7.2 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

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