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CVE-2019-1388

Microsoft Windows Certificate Dialog Privilege Escalation

7.8 HIGHActively exploited (CISA KEV)Used in ransomwareEPSS 8.59%
  1. Published12 Nov 2019
  2. Added to CISA KEV7 Apr 2023
  3. Remediation due28 Apr 2023
Actively exploited (CISA KEV)

Microsoft Windows Certificate Dialog contains a privilege escalation vulnerability, allowing attackers to run processes in an elevated context.

Added to KEV: 7 Apr 2023Federal remediation due: 28 Apr 2023Used in ransomware

Description

An elevation of privilege vulnerability exists in the Windows Certificate Dialog when it does not properly enforce user privileges, aka 'Windows Certificate Dialog Elevation of Privilege Vulnerability'.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Microsoft Windows 10 1507all versions
Microsoft Windows 10 1607all versions
Microsoft Windows 10 1709all versions
Microsoft Windows 10 1803all versions
Microsoft Windows 10 1809all versions
Microsoft Windows 10 1903all versions
Microsoft Windows 7all versions
Microsoft Windows 8.1all versions
Microsoft Windows Rt 8.1all versions
Microsoft Windows Server 1903all versions
Microsoft Windows Server 2008r2
Microsoft Windows Server 2012r2
Microsoft Windows Server 20161803
Microsoft Windows Server 2019all versions

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Recent high-severity vulnerabilities sharing a weakness type.

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Frequently asked

Is CVE-2019-1388 being actively exploited?

Yes. CVE-2019-1388 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 7 Apr 2023. It has been used in ransomware campaigns.

How severe is CVE-2019-1388?

CVE-2019-1388 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 8.59% probability of exploitation.

Which products are affected by CVE-2019-1388?

Affected products include Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1709, Microsoft Windows 10 1803, Microsoft Windows 10 1809, and 9 more.

How do I fix CVE-2019-1388?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2019-1388 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, a risk for it never ranks below high, and the update that fixes it moves to the Emergency patch lane. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.