Vulnerability in Microsoft Windows 10 1607
CVE-2019-1064
An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links. An attacker who successfully exploited this vulnerability could run processes in an elevated context. An attacker could then install programs; view, change or delete data. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system. The security update addresses the vulnerability by correcting how Windows AppX Deployment Service handles hard links.
EPSS: 0.069 (93.6th percentile) — read the EPSS interpretation.
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.
Affected products
- Microsoft Windows_10_1607
- Microsoft Windows_10_1703
- Microsoft Windows_10_1709
- Microsoft Windows_10_1803
- Microsoft Windows_10_1809
- Microsoft Windows_10_1903
- Microsoft Windows 10 Version 1607 — versions 10.0.14393.0
- Microsoft Windows 10 Version 1703 — versions 10.0.0
- Microsoft Windows 10 Version 1709 — versions 10.0.0
- Microsoft Windows 10 Version 1709 For 32-bit Systems — versions 10.0.0
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
- secure@microsoft.com (vendor-advisory, Patch, Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Patch, Vendor Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2019-1064?
- CVE-2019-1064 is a high-severity vulnerability in Microsoft Windows 10 1607, classified under Improper Link Resolution Before File Access. CVSS score: 7.8/10. Published 2019-06-12.
- How severe is CVE-2019-1064?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2019-1064 known to be exploited?
- Yes. CVE-2019-1064 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-15), indicating it is being actively exploited. 32 public proof-of-concept repositories are indexed.