An elevation of privilege vulnerability exists in Windows AppX Deployment Server that allows file creation in arbitrary locations.

published 2019-04-09 7y ago modified 2026-06-17 4mo ago also EUVD-2019-1525

cvss: 7.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.1%; EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits: 0; none known

An elevation of privilege vulnerability exists in Windows AppX Deployment Server that allows file creation in arbitrary locations. To exploit the vulnerability, an attacker would first have to log on to the system, aka 'Microsoft Windows Elevation of Privilege Vulnerability'.

Patch / fix

links 1

portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0766 advisory

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Exploit prediction

1.08% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.0	7.8	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.2	AV:L/AC:L/Au:N/C:C/I:C/A:C

Affected products

Microsoft Windows Server
Microsoft Windows

References

portal.msrc.microsoft.com /en-US/security-guidance/advisory/CVE-2019-0766
patch, vendor-advisory

Sources

CVE List CVE-2019-0766
NVD CVE-2019-0766

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