CVE-2019-1385 kev+ ransomware in the critical feed json
An elevation of privilege vulnerability exists when the Windows AppX Deployment Extensions improperly performs privilege management, result…
published 2019-11-12 6 y ago modified 2026-08-12 2 mo ago also EUVD-2019-9942
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Exploited
- added 2022-05-23, used in ransomware
- epss
- 3.6%
- EPSS 3.6% chance of exploitation in 30 days, percentile 89%
- public exploits
- 0
- none known
Summary
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'.
Patch / fix
cisa required action Apply updates per vendor instructions.
Timeline
- Published
- Added to CISA KEV
- CISA SSVC: exploitation active
- CISA patch deadline
Known exploited
- Added
- 4 y ago
- Patch by
- 2022-06-13 (4 y ago)
- Ransomware
- Known to be used in ransomware campaigns
- Required action
- Apply updates per vendor instructions.
- Vendor, product
- Microsoft, Windows
- CISA name
- Microsoft Windows AppX Deployment Extensions Privilege Escalation Vulnerability
CISA SSVC
- Exploitation
- Active, exploited in the wild
- Automatable
- no
- Technical impact
- total
- Assessed
- 4 y ago
Exploit prediction
3.60% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.1 | AV:L/AC:L/Au:N/C:P/I:P/A:C |
Affected products
- Microsoft Windows
- Microsoft Windows Server
- Microsoft Windows 10 Version 1903 for 32-bit Systems
- Microsoft Windows 10 Version 1903 for x64-based Systems
- Microsoft Windows 10 Version 1903 for ARM64-based Systems
- Microsoft Windows Server, version 1903 (Server Core installation)
Classification
- Weakness
-
- CWE-59 Improper Link Resolution Before File Access
References
-
portal.msrc.microsoft.com
/en-US/security-guidance/advisory/CVE-2019-1385
patch, vendor-advisory
-
zerodayinitiative.com
/advisories/ZDI-19-979/
third-party-advisory
-
cisa.gov
/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1385
government-resource, us-government-resource
Sources
- CVE List CVE-2019-1385
- NVD CVE-2019-1385
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