Actively exploited in the wild
Microsoft Windows AppX Deployment Server Privilege Escalation Vulnerability
Microsoft - Windows · Listed in the CISA KEV since 2022-03-15. This indicates confirmed attacks in production environments.
Required action: Apply updates per vendor instructions.
CVE-2019-1253
HighCVSS 7.8KEVSummary
An elevation of privilege vulnerability exists when the Windows AppX Deployment Server improperly handles junctions. To exploit this, an attacker must first gain execution on the victim system.
Risk Assessment
After gaining initial access, a local attacker could elevate privileges to administrator level, potentially leading to full system compromise.
Recommendation
Install the Microsoft security updates for Windows that address this vulnerability.
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Original NVD description (English source)
An elevation of privilege vulnerability exists when the Windows AppX Deployment Server improperly handles junctions.To exploit this vulnerability, an attacker would first have to gain execution on the victim system, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1215, CVE-2019-1278, CVE-2019-1303.