CVE-2026-40031

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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/ufrisk/MemProcFS/commit/df80e6e83641f5004025ce661e6dd8139028d7b5	Patch
https://github.com/ufrisk/MemProcFS/releases/tag/v5.17	Product
https://mobasi.ai/sentinel	Third Party Advisory
https://www.vulncheck.com/advisories/memprocfs-dll-shared-library-hijacking	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:ufrisk:memprocfs:*:*:*:*:*:*:*:*

History

17 Apr 2026, 16:15

Type	Values Removed	Values Added
First Time		Ufrisk Ufrisk memprocfs
CPE		cpe:2.3:a:ufrisk:memprocfs::::::::
References	~~() https://github.com/ufrisk/MemProcFS/commit/df80e6e83641f5004025ce661e6dd8139028d7b5 -~~	() https://github.com/ufrisk/MemProcFS/commit/df80e6e83641f5004025ce661e6dd8139028d7b5 - Patch
References	~~() https://github.com/ufrisk/MemProcFS/releases/tag/v5.17 -~~	() https://github.com/ufrisk/MemProcFS/releases/tag/v5.17 - Product
References	~~() https://mobasi.ai/sentinel -~~	() https://mobasi.ai/sentinel - Third Party Advisory
References	~~() https://www.vulncheck.com/advisories/memprocfs-dll-shared-library-hijacking -~~	() https://www.vulncheck.com/advisories/memprocfs-dll-shared-library-hijacking - Third Party Advisory

08 Apr 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-08 22:16

Updated : 2026-04-17 16:15

NVD link : CVE-2026-40031

Mitre link : CVE-2026-40031

CVE.ORG link : CVE-2026-40031

JSON object : View

Products Affected

ufrisk

memprocfs

CWE

CWE-427

Uncontrolled Search Path Element

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