Vulnerability Database

324,292

Total vulnerabilities in the database

CVE-2026-25749

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.

  • Published: Feb 6, 2026
  • Updated: Feb 21, 2026
  • CVE: CVE-2026-25749
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 6.6
  • AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H

CWEs:

Software From Fixed in
vim / vim - 9.1.2132