CVE-2019-1064
Microsoft Windows AppX Deployment Service (AppXSVC) Privilege Escalation
- Published12 Jun 2019
- Added to CISA KEV15 Mar 2022
- Remediation due5 Apr 2022
Description
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.
CVSS 3.1 breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HAffected products
Remediation
No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.
References
Related CVEs
Recent high-severity vulnerabilities sharing a weakness type.
Frequently asked
Is CVE-2019-1064 being actively exploited?
Yes. CVE-2019-1064 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 15 Mar 2022. It has been used in ransomware campaigns.
How severe is CVE-2019-1064?
CVE-2019-1064 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 6.89% probability of exploitation.
Which products are affected by CVE-2019-1064?
Affected products include Microsoft Windows 10 1607, Microsoft Windows 10 1703, Microsoft Windows 10 1709, Microsoft Windows 10 1803, Microsoft Windows 10 1809, and 6 more.
How do I fix CVE-2019-1064?
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-2019-1064 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.
Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.