CVE-2026-40031
8.5
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
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| ufrisk | MemProcFS | 0 <= 5.16.12 | affected |
| ufrisk | MemProcFS | 5.17.0 | unaffected |
| ufrisk | MemProcFS | df80e6e83641f5004025ce661e6dd8139028d7b5 | unaffected |
Weaknesses
- CWE-427: Uncontrolled Search Path Element
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
- https://github.com/ufrisk/MemProcFS/releases/tag/v5.17
- https://github.com/ufrisk/MemProcFS/commit/df80e6e83641f5004025ce661e6dd8139028d7b5
- https://mobasi.ai/sentinel
- https://www.vulncheck.com/advisories/memprocfs-dll-shared-library-hijacking
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