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High · 7.8 CVE-2026-40031 EUVD-2026-20773GHSA-wxrw-fvc7-2xmx

MemProcFS < 5.17 DLL/Shared Library Hijacking

Published Apr 8, 2026 · Updated Nov 8, 2026 · Assigned by VulnCheck

Description

MemProcFS before 5.17 contains multiple unsafe library-loading patterns that enable DLL and shared-library hijacking across six attack surfaces, including bare-name LoadLibraryU and dlopen calls without path qualification for vmmpyc, libMSCompression, and plugin DLLs. An attacker who places a malicious DLL or shared library in the working directory or manipulates LD_LIBRARY_PATH can achieve arbitrary code execution when MemProcFS loads.

Affected products

VendorProductAffectedFixed
ufrisk MemProcFS ≤ 5.16.12 5.17.0

References