Is CVE-2026-40031 actively exploited?

No active exploitation of CVE-2026-40031 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-40031 be exploited remotely?

No. CVE-2026-40031 requires local access to exploit.

What is the CVSS score of CVE-2026-40031?

CVE-2026-40031 has a CVSS score of 7.8 (HIGH).

HOME VULNERABILITIESCVE-2026-40031

HIGH

CVE-2026-40031

CWE-427Published: April 8, 2026· Updated: Apr 13, 2026

7.8

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:2.3th

Official 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.

NVD Source

Technical Analysis

CVE-2026-40031 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.