CVE-2020-0790
HIGHWindows - Local Privilege Escalation via splwow64.exe Call Handling
Title source: llmDescription
<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
Patch, Vendor Advisory x_refsource_misc
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0790
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