Vim is an open source, command line text editor. Prior to version 9.2.0075, a heap-based buffer underflow exists in Vim's Emacs-style tags file parsing logic. When processing a malformed tags file where a delimiter appears at the start of a line, Vim attempts to read memory immediately preceding the allocated buffer. Version 9.2.0075 fixes the issue.
https://github.com/vim/vim/security/advisories/GHSA-xcc8-r6c5-hvwv
https://github.com/vim/vim/releases/tag/v9.2.0075