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CVE-2026-40031
HIGH7.8
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.
CVE Details
CVSS v3.1 Score7.8
SeverityHIGH
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack VectorLOCAL
ComplexityLOW
Privileges RequiredNONE
User InteractionREQUIRED
Published4/8/2026
Last Modified4/17/2026
Sourcenvd
Honeypot Sightings0
Affected Products
ufrisk:memprocfs
Weaknesses (CWE)
CWE-427
References
https://github.com/ufrisk/MemProcFS/commit/df80e6e83641f5004025ce661e6dd8139028d7b5(disclosure@vulncheck.com)
https://github.com/ufrisk/MemProcFS/releases/tag/v5.17(disclosure@vulncheck.com)
https://mobasi.ai/sentinel(disclosure@vulncheck.com)
https://www.vulncheck.com/advisories/memprocfs-dll-shared-library-hijacking(disclosure@vulncheck.com)
IOC Correlations
No correlations recorded
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