CVE-2019-1385
HighExploitedPublic exploitAn 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…
Published Nov 12, 2019 · Updated Aug 12, 2026
Key Facts
Patch immediately- CVE-2019-1385 is a high-severity vulnerability (CVSS 7.8 v3.1) affecting Windows 10 1709 (Microsoft), Windows 10 1803 (Microsoft), Windows 10 1809 (Microsoft) and 9 more products.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 24, 2022 and is known to be used in ransomware campaigns. Public exploit code is available.
- EPSS estimates a 3.6% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
3.6%
Higher than 89.3% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings, used by ransomware
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2019-1385 brief as a PDF
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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'.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | May 23, 2022 | Jun 13, 2022 | Known |
| Industry KEV feed | Mar 24, 2022 | Jun 13, 2022 | Known |
| CIRCL KEV | May 23, 2022 | Jun 13, 2022 | Known |
| ENISA EUVD | May 23, 2022 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
12 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Windows 10 1709Microsoft | See advisory | n/a |
| Windows 10 1803Microsoft | See advisory | n/a |
| Windows 10 1809Microsoft | See advisory | n/a |
| Windows 10 1903Microsoft | See advisory | n/a |
| Windows Server 2016Microsoft | See advisory | n/a |
Timeline
Publicly disclosed
Nov 12, 2019
Added to Industry KEV feed
Mar 24, 2022
Added to CISA KEV
May 23, 2022
Added to CIRCL KEV
May 23, 2022
Added to ENISA EUVD
May 23, 2022
Last updated
Aug 12, 2026
Weakness Type
- CWE-59 Improper Link Resolution Before File Access ('Link Following')
References
- advisoryhttps://www.zerodayinitiative.com/advisories/ZDI-19-979/
- patchhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1385
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
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 a…
Affected: Windows 10 1709 (Microsoft); Windows 10 1803 (Microsoft); Windows 10 1809 (Microsoft), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 24, 2022 and is known to be used in ransomware campaigns.
Yes. It was added on May 23, 2022 with a federal remediation due date of Jun 13, 2022.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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