CVE-2019-1253

HIGH
7.8
CVSS Score
Published: September 11, 2019 at 09:24 PM UTC
Updated: June 17, 2026 at 02:28 AM UTC
10 products affected across 1 vendorWindows Server 2019Windows 10 1809Windows 10 1903

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Severity
HIGH7.8
Exploitation
CISA KEV
Exploit prediction
EPSS 12%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score11.6%

EPSS (Exploit Prediction Scoring System) estimates a 11.6% chance this CVE is exploited in the wild within the next 30 days — higher than 96% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

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

Required Action
Apply updates per vendor instructions.
Ransomware Use
Known
Added to KEV
Mar 15, 2022
Remediation Due
Apr 5, 2022
1667 days overdue

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

10 Version 1703 for 32-bit Systems10 Version 1703 for x64-based Systems10 Version 1709 for 32-bit Systems10 Version 1709 for ARM64-based Systems10 Version 1709 for x64-based Systems10 Version 1803 for 32-bit Systems10 Version 1803 for ARM64-based Systems10 Version 1803 for x64-based Systems10 Version 1809 for 32-bit Systems10 Version 1809 for ARM64-based Systems10 Version 1809 for x64-based Systems

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCActiveNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
NVD-CWE-noinfoCWE-59

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