An unquoted Windows search path vulnerability existed in the install the MOVE 4.10.x and earlier Windows install service (mvagtsce.exe).
The misconfiguration allowed an unauthorized local user to insert arbitrary code into the unquoted service path to obtain privilege escalation and stop antimalware services.
Conclusion & alert: CVE-2023-3438 is rated Low Risk (22.2/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.22%).Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
Exploit prediction scoring system (EPSS) score for CVE-2023-3438
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).