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Findings

CVE-2019-1253

Microsoft Windows AppX Deployment Server Privilege Escalation Vulnerability

Published Sep 11, 2019 · updated Jun 16, 2026 · microsoft windows 10 1703

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.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 11, 2019 · Catalog

    Detected

    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.

  2. Mar 15, 2022 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Apr 5, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    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.

Required action

Apply updates per vendor instructions.

CISA due date Apr 5, 2022

Affected

  • cpe microsoft/windows 10 1703version unspecified
  • cpe microsoft/windows 10 1709version unspecified
  • cpe microsoft/windows 10 1803version unspecified
  • vendor Microsoft Windowsversion unspecified

Sources

  • CISA KEVCVE-2019-1253

    A privilege escalation vulnerability exists when the Windows AppX Deployment Server improperly handles junctions.

    cisa.gov
  • CVE.orgCVE-2019-1253

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2019-1253

    30-day exploitation probability 11.6%

    first.org
  • Exploit Database47389

    Public archive entry. The exploit body is not stored here.

    exploit-db.com
  • NIST NVDCVE-2019-1253

    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

    nvd.nist.gov
  • Packet Storm Securityhttp://packetstormsecurity.com/files/154488/AppXSvc-17763.1.amd64fre.rs5_release.180914-1434-Privilege-Escalation.html

    Packet Storm link already published on the finding.

    packetstormsecurity.com

References