CVE-2019-1365

CRITICAL

9.9

CVSS Score

Published: October 10, 2019 at 01:28 PM UTC

Updated: June 17, 2026 at 02:28 AM UTC

12 products affected across 1 vendorWindows Server 2016Windows Server 2019Windows Server 2012

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Severity

CRITICAL9.9

Exploit prediction

EPSS 4%

Description

An elevation of privilege vulnerability exists when Microsoft IIS Server fails to check the length of a buffer prior to copying memory to it.An attacker who successfully exploited this vulnerability can allow an unprivileged function ran by the user to execute code in the context of NT AUTHORITY\system escaping the Sandbox.The security update addresses the vulnerability by correcting how Microsoft IIS Server sanitizes web requests., aka 'Microsoft IIS Server Elevation of Privilege Vulnerability'.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Windows 10 · Microsoft

95%

1607 1803 1809 1903

Windows 7 · Microsoft

95%

sp1

Windows 8-1 · Microsoft

95%

All versions

Windows Rt 8-1 · Microsoft

95%

All versions

Windows Server 2008 · Microsoft

95%

r2 sp1sp2

Windows Server 2012 · Microsoft

95%

Windows Server 2016 · Microsoft

95%

1803 1903

Windows Server 2019 · Microsoft

95%

All versions

Windows · Microsoft

60%

10 Version 1607 for 32-bit Systems10 Version 1607 for x64-based Systems10 Version 1803 for 32-bit Systems10 Version 1803 for ARM64-based Systems10 Version 1803 for x64-based Systems10 Version 1809 for 32-bit Systems10 Version 1809 for ARM64-based Systems10 Version 1809 for x64-based Systems7 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

Windows 10 1903 · Microsoft

60%

All versions