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High · 7.8 Known exploited · Ransomware Public exploit CVE-2019-1215 EUVD-2019-9783GHSA-63x7-m3j2-hxwg

An elevation of privilege vulnerability exists in the way that ws2ifsl.sys (Winsock) handles objects in memory, aka 'Windows Elevation of P…

Published Sep 11, 2019 · Updated Oct 21, 2025 · Assigned by microsoft

Description

An elevation of privilege vulnerability exists in the way that ws2ifsl.sys (Winsock) handles objects in memory, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1253, CVE-2019-1278, CVE-2019-1303.

Affected products

VendorProductAffectedFixed
Microsoft Windows 7 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, 10 for 32-bit Systems, 10 for x64-based Systems, 10 Version 1607 for 32-bit Systems, 10 Version 1607 for x64-based Systems, 10 Version 1703 for 32-bit Systems, 10 … —
Microsoft Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Core installation), 2008 R2 for Itanium-Based Systems Service Pack 1, 2008 R2 for x64-based Systems Service Pack 1, 2008 for 32-bit Systems Service Pack 2 (Core installation), 2012, 2012 (Core installation), 2012 R2, 2012 R2 (Core installation), 2016, 2… —
Microsoft Windows 10 Version 1903 for 32-bit Systems unspecified —
Microsoft Windows 10 Version 1903 for x64-based Systems unspecified —
Microsoft Windows 10 Version 1903 for ARM64-based Systems unspecified —
Microsoft Windows Server, version 1903 (Server Core installation) unspecified —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

References