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

criticalknown exploitedCVE-2019-1130
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
A privilege escalation vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links.

CSIRTS triage

vendor: Microsoftproduct: Windows AppX Deployment ServicePrivilege escalation
What
A privilege escalation vulnerability exists due to improper handling of hard links by the Windows AppX Deployment Service.
Who is affected
Users of Microsoft Windows with the AppX Deployment Service are affected.
Urgency
Remediation is critical as the vulnerability is actively exploited and has a high severity rating.
Action
Apply the latest security updates from Microsoft.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-05-23
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2019-1130

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2019-1130coverage & exploitation statusNVD · CVE.org

Recent advisories for Microsoft Windows AppX

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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