CVE-2026-40031
MemProcFS < 5.17 DLL/Shared Library Hijacking
- State
- Published
- Severity
- 8.5 High
- Published
- Apr 8, 2026
- Updated
- Jul 14, 2026
- Reserved
- Apr 8, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.5 High | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.8 High | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-427 Uncontrolled Search Path Element
Affected Products
| Product | Versions |
|---|---|
MemProcFSufrisk |
|
References
- Release Notesproduct
- Patch Commitpatch
- Mobasi Sentinel Vulnerability Indexvendor-advisory
- VulnCheck Advisory: MemProcFS < 5.17 DLL/Shared Library Hijackingthird-party-advisory
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