<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>
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Msft | — | 2020-09 Cumulative Update for Windows Server, version 1909 for x64-based Systems (KB4574727)2020-09 Security Only Quality Update for Windows Server 2008 R2 for x64-based Systems (KB4577053)2020-09 Security Only Quality Update for Windows Embedded Standard 7 for x64-based Systems (KB4577053)2020-09 Cumulative Update for Microsoft Windows 10, version 1803 (KB4577032)2020-09 Security Only Quality Update for Windows Server 2008 for x64-based Systems (KB4577070)2020-09 Security Only Quality Update for Windows Embedded 8 Standard for x86-based Systems (KB4577048)2020-09 Cumulative Update for Windows Server, version 1903 for x64-based Systems (KB4574727)2020-09 Cumulative Update for Microsoft Windows 10, version 1507 (KB4577049)2020-09 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4577071)2020-09 Cumulative Update for Microsoft Windows Server 2019, version 1809 (KB4570333)2020-09 Security Only Quality Update for Windows Embedded 8 Standard for x64-based Systems (KB4577048)2020-09 Cumulative Update for Microsoft Windows 10, version 1903 (KB4574727)2020-09 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4577071)2020-09 Cumulative Update for Microsoft Windows 10, version 1809 (KB4570333)2020-09 Cumulative Update for Windows Server, version 2004 for x64-based Systems (KB4571756)2020-09 Security Only Quality Update for Windows 7 for x64-based Systems (KB4577053)2020-09 Security Only Quality Update for Windows 7 for x86-based Systems (KB4577053)2020-09 Cumulative Update for Microsoft Windows Server 2012 (KB4577048)2020-09 Security Only Quality Update for Windows Server 2008 for x86-based Systems (KB4577070)2020-09 Cumulative Update for Microsoft Windows 10, version 1607 (KB4577015)2020-09 Security Only Quality Update for Windows Embedded Standard 7 for x86-based Systems (KB4577053)2020-09 Cumulative Update for Microsoft Windows Server 2016, version 1607 (KB4577015)2020-09 Cumulative Update for Microsoft Windows 10, version 2004 (KB4571756)2020-09 Cumulative Update for Microsoft Windows 10, version 1909 (KB4574727)2020-09 Cumulative Update for Microsoft Windows 10, version 1709 (KB4577041)2020-09 Cumulative Update for Microsoft Windows Server 2012 R2 (KB4577071) | Sep 8, 2020 | Sep 8, 2020 |
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