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CVE-2019-1253

HIGHCVSS 7.8/10Actively ExploitedEPSS 11.62%

Last modified

CVE-2019-1253 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. CISA has confirmed active exploitation in the wild. EPSS estimates a 11.62% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
11.62%

95.5th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .

Weakness Enumeration

Affected Software

VendorProductVersions
MicrosoftWindows 10 1703All versions
MicrosoftWindows 10 1709All versions
MicrosoftWindows 10 1803All versions
MicrosoftWindows 10 1809All versions
MicrosoftWindows 10 1903All versions
MicrosoftWindows Server 1803All versions
MicrosoftWindows Server 1903All versions
MicrosoftWindows Server 2019All versions

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-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 is unique from CVE-2019-1215, CVE-2019-1278, CVE-2019-1303.
How severe is CVE-2019-1253?
CVE-2019-1253 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 11.62% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.
How do I fix CVE-2019-1253?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-1253?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST