Vulnerability in Microsoft Windows
CVE-2019-1385
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'.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.036 (89.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.036 · newest: 0.036 · change: 0.000
Affected products
- Microsoft Windows — versions 10 Version 1709 for 32-bit Systems, 10 Version 1709 for x64-based Systems, 10 Version 1803 for 32-bit Systems
- Microsoft Windows 10 1709
- Microsoft Windows 10 1803
- Microsoft Windows 10 1809
- Microsoft Windows 10 1903
- Microsoft Windows 10 Version 1903 For 32-Bit Systems — versions unspecified
- Microsoft Windows 10 Version 1903 For Arm64-Based Systems — versions unspecified
- Microsoft Windows 10 Version 1903 For X64-Based Systems — versions unspecified
- Microsoft Windows Server — versions version 1803 (Core Installation), 2019, 2019 (Core installation)
- Microsoft Windows Server 2016
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Known ransomware campaign use: yes.
Public proof-of-concept exploits
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1385 (Patch, Vendor Advisory)
- www.zerodayinitiative.com/advisories/ZDI-19-979/ (Third Party Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2019-1385?
- CVE-2019-1385 is a high-severity vulnerability in Microsoft Windows, classified under Improper Link Resolution Before File Access. CVSS score: 7.8/10. Published 2019-11-12.
- How severe is CVE-2019-1385?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2019-1385 known to be exploited?
- Yes. CVE-2019-1385 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-05-23), indicating it is being actively exploited. 21 public proof-of-concept repositories are indexed.