7.8

CVE-2019-1388: Microsoft Windows Certificate Dialog Privilege Escalation Vulnerability

CVSS: 7.8v3.1HighKEVRansomwareAnalyzed
Published 12-11-2019Last modified 21-10-2025
Open JSON

Vulnerability summary

CVE-2019-1388 is a high (CVSS 7.8) Improper Privilege Management vulnerability in Microsoft Windows. It is known to be exploited: CISA lists it, first on 07-04-2023. It has been used in ransomware campaigns. EPSS estimates a 8.59% chance of exploitation in the next 30 days, higher than 95% of scored vulnerabilities.

Overall risk
90/100
0100
Critical · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
8.59%
0%100%
Low · 0.00 pp in 30 days
KEVListedCISA
RansomwareKnown useFlagged by CISA
Public exploits0No public exploits recorded

Timeline

  1. 12-11-2019
    PublishedVulnerability first disclosed.
  2. 07-04-2023
    Added to CISA KEVMicrosoft Windows Certificate Dialog Privilege Escalation Vulnerability
  3. 28-04-2023
    CISA remediation dueApply updates per vendor instructions.
  4. 21-10-2025
    Last modifiedVulnerability information updated.

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 metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

8.59%

Chance of exploitation in the next 30 days

Percentile

95%

Versus all other CVEs

30-day change

0.00 pp

From 8.59% on 19-09-2026

19-09-202619-10-2026
EPSS score
8.59%

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
07-04-2023
Federal due date
28-04-2023
Ransomware

CISA required action

Apply updates per vendor instructions. portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1388 nvd.nist.gov/vuln/detail/CVE-2019-1388

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Microsoft20 products
  • windowsEOL7 for 32-bit Systems Service Pack 1 | 7 for x64-based Systems Service Pack 1 | 8.1 for 32-bit systems | 8.1 for x64-based systems | RT 8.1 | 10 for 32-bit Systems | 10 for x64-based Systems | 10 Version 1607 for 32-bit Systems | 10 Version 1607 for x64-based Systems | 10 Version 1709 for 32-bit Systems | 10 Version 1709 for x64-based Systems | 10 Version 1803 for 32-bit Systems | 10 Version 1803 for x64-based Systems | 10 Version 1803 for ARM64-based Systems | 10 Version 1809 for 32-bit Systems | 10 Version 1809 for x64-based Systems | 10 Version 1809 for ARM64-based Systems | 10 Version 1709 for ARM64-based Systems
  • windows_10_1507na
  • windows_10_1607na
  • windows_10_1709na
  • windows_10_1803na

1 vendor · 20 products

References

3 links