CVE-2019-1388
Microsoft Windows Certificate Dialog Privilege Escalation Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 28 April 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 8.59% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 7 April 2023 · due 28 April 2023 · used in ransomware campaigns
- Weakness
- CWE-269
- Affected
- microsoft/windows 10 1507 · microsoft/windows 10 1607 · microsoft/windows 10 1709 · microsoft/windows 10 1803 · microsoft/windows 10 1809 · microsoft/windows 10 1903 · microsoft/windows 7 · microsoft/windows 8.1 · microsoft/windows rt 8.1 · microsoft/windows server 1903 · microsoft/windows server 2008 · microsoft/windows server 2012 · microsoft/windows server 2016 · microsoft/windows server 2019
- Source
- secure@microsoft.com
EPSS 8.6% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply updates per vendor instructions. https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1388; https://nvd.nist.gov/vuln/detail/CVE-2019-1388
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1388Patch, Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-19-975/Third Party Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1388Patch, Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-19-975/Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1388US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.