CVE-2026-40031
CVE-2026-40031
8.5
HighPublished:
Last updated:
Source:disclosure@vulncheck.com
Analyzed
Weakness (CWE)
CVSS Vector
v4.0- Attack Vector
- Local
- Attack Complexity
- Low
- Attack Requirements
- None
- Privileges Required
- None
- User Interaction
- Passive
- Confidentiality (Vulnerable)
- High
- Integrity (Vulnerable)
- High
- Availability (Vulnerable)
- High
- Confidentiality (Subsequent)
- None
- Integrity (Subsequent)
- None
- Availability (Subsequent)
- None
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.
References
disclosure@vulncheck.com
https://github.com/ufrisk/MemProcFS/commit/df80e6e83641f5004025ce661e6dd8139028d7b5disclosure@vulncheck.com
https://github.com/ufrisk/MemProcFS/releases/tag/v5.17disclosure@vulncheck.com
https://mobasi.ai/sentineldisclosure@vulncheck.com
https://www.vulncheck.com/advisories/memprocfs-dll-shared-library-hijacking