CVE-2020-0790

HIGH

Windows - Local Privilege Escalation via splwow64.exe Call Handling

Title source: llm
STIX 2.1

Description

<p>A local elevation of privilege vulnerability exists in how splwow64.exe handles certain calls. An attacker who successfully exploited the vulnerability could elevate privileges on an affected system from low-integrity to medium-integrity.</p> <p>This vulnerability by itself does not allow arbitrary code execution; however, it could allow arbitrary code to be run if the attacker uses it in combination with another vulnerability (such as a remote code execution vulnerability or another elevation of privilege vulnerability) that is capable of leveraging the elevated privileges when code execution is attempted.</p> <p>The security update addresses the vulnerability by ensuring splwow64.exe properly handles these calls..</p>

References (1)

Core 1
Core References

Scores

CVSS v3 7.8
EPSS 0.0093
EPSS Percentile 57.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

Status published
Products (19)
microsoft/windows_10 (2 CPE variants)
microsoft/windows_10 1607 (2 CPE variants)
microsoft/windows_10 1709
microsoft/windows_10 1803
microsoft/windows_10 1809
microsoft/windows_10 1903
microsoft/windows_10 1909
microsoft/windows_10 2004
microsoft/windows_7 (2 CPE variants)
microsoft/windows_8.1 (2 CPE variants)
... and 9 more
Published Sep 11, 2020
Tracked Since Feb 18, 2026