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CVE-2019-1385

Microsoft Windows AppX Deployment Extensions Privilege Escalation

7.8 HIGHActively exploited (CISA KEV)Used in ransomwareEPSS 3.60%
  1. Published12 Nov 2019
  2. Added to CISA KEV23 May 2022
  3. Remediation due13 Jun 2022
Actively exploited (CISA KEV)

A privilege escalation vulnerability exists when the Windows AppX Deployment Extensions improperly performs privilege management, resulting in access to system files.

Added to KEV: 23 May 2022Federal remediation due: 13 Jun 2022Used in ransomware

Description

An elevation of privilege vulnerability exists when the Windows AppX Deployment Extensions improperly performs privilege management, resulting in access to system files.To exploit this vulnerability, an authenticated attacker would need to run a specially crafted application to elevate privileges.The security update addresses the vulnerability by correcting how AppX Deployment Extensions manages privileges., aka 'Windows AppX Deployment Extensions Elevation of Privilege Vulnerability'.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Microsoft Windows 10 1709all versions
Microsoft Windows 10 1803all versions
Microsoft Windows 10 1809all versions
Microsoft Windows 10 1903all versions
Microsoft Windows Server 2016all versions
Microsoft Windows Server 2019all versions

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2019-1385 being actively exploited?

Yes. CVE-2019-1385 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 23 May 2022. It has been used in ransomware campaigns.

How severe is CVE-2019-1385?

CVE-2019-1385 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 3.60% probability of exploitation.

Which products are affected by CVE-2019-1385?

Affected products include Microsoft Windows 10 1709, Microsoft Windows 10 1803, Microsoft Windows 10 1809, Microsoft Windows 10 1903, Microsoft Windows Server 2016, and 1 more.

How do I fix CVE-2019-1385?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2019-1385 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.