PoC Index

CVE-2019-1064

KEV RANSOMWAREHIGH 7.8EPSS 6.9%

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 v3.1
7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v3.1
7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0
7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
EPSS
6.89% chance of exploitation in the next 30 days, 94th percentile
CISA KEV
added 2022-03-15, used in ransomware campaigns
Published
2019-06-12
Updated
2025-10-21

Proof-of-concept exploits (3)

References

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