CVE-2026-25749 | BDVDB-2026-314255 Detail

Description#

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.

Impact#

Weaknesses#

References#

Exploit#

History#

1. Version 12026-02-06Record published in the CVE List.
2. Version 22026-02-09Most recent update recorded in the CVE List.