Vim before 9.2.0272 allows code execution that happens immediately upon opening a crafted file in the default configuration, because %{expr} injection occurs with tabpanel lacking P_MLE.
9.2.0272Exploitability
AV:LAC:LPR:NUI:RScope
S:CImpact
C:HI:HA:H8.6/CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:HInjection