Vim is an open source, command line text editor. Prior to version 9.1.2132, a heap buffer overflow vulnerability exists in Vim's tag file resolution logic when processing the 'helpfile' option. The vulnerability is located in the get_tagfname() function in src/tag.c. When processing help file tags, Vim copies the user-controlled 'helpfile' option value into a fixed-size heap buffer of MAXPATHL + 1 bytes (typically 4097 bytes) using an unsafe STRCPY() operation without any bounds checking. This issue has been patched in version 9.1.2132.
Exploitability
AV:LAC:LPR:LUI:RScope
S:UImpact
C:NI:HA:H6.6/CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:HOther