CVE-2019-1130: Microsoft Windows AppX Deployment Service Privilege Escalation Vulnerability

CVE-2019-1130 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2022-05-23

An elevation of privilege vulnerability exists in the Microsoft Windows AppX Deployment Service (AppXSVC) due to improper handling of hard links. A local attacker could exploit this by following links to gain elevated system privileges.

Technologies: Microsoft Windows. Vendors: Microsoft.

Quick answers

Is CVE-2019-1130 exploited in the wild?
Yes. CVE-2019-1130 is known to be exploited in the wild, first recorded on 23 May 2022. Treat it as urgent.
How severe is CVE-2019-1130?
Critical severity, with a CVSS score of 7.8, published 23 May 2022.
Which products and versions are affected?
Microsoft Windows 10 1507, 1607, 1703, 1709, 1803, 1809, 1903; Microsoft Windows Server 2012, 2012 R2, 2016, 2019, 1803, 1903; Microsoft Windows 8.1; Microsoft Windows RT 8.1.
Is there a fix for CVE-2019-1130?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2019-1130 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2019-1130?
Check whether you run Microsoft Windows. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Microsoft Windows 10 1507, 1607, 1703, 1709, 1803, 1809, 1903
  • Microsoft Windows Server 2012, 2012 R2, 2016, 2019, 1803, 1903
  • Microsoft Windows 8.1
  • Microsoft Windows RT 8.1

Timeline

  • 2019-07-16: disclosed: Initial analysis by NIST
  • 2022-05-23: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2022-05-23: exploited: Reported as exploited in the wild

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