CVE-2026-40031

HIGH

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 v3.1 Score

7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Published: 4/8/2026Modified: 4/17/2026

Related Intelligence (1)

HIGHVulnerability

NVD HIGH: CVE-2026-40031 — MemProcFS before 5.17 contains multiple unsafe library-loading patterns that ena...

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 arbitr

CVE-2026-40031
NIST NVD

References (4)

https://github.com/ufrisk/MemProcFS/commit/df80e6e83641f5004025ce661e6dd8139028d7b5Patchhttps://github.com/ufrisk/MemProcFS/releases/tag/v5.17Producthttps://mobasi.ai/sentinelThird Party Advisoryhttps://www.vulncheck.com/advisories/memprocfs-dll-shared-library-hijackingThird Party Advisory