CVE-2026-28422

Vim has stack-buffer-overflow in build_stl_str_hl()

Published: 2/27/2026 Last updated: 3/2/2026 Reserved: 2/27/2026

Vim is an open source, command line text editor. Prior to version 9.2.0078, a stack-buffer-overflow occurs in `build_stl_str_hl()` when rendering a statusline with a multi-byte fill character on a very wide terminal. Version 9.2.0078 patches the issue.

CNA assigner: GitHub_M (a0819718-46f1-4df5-94e2-005712e83aaa) Requested by: n/a

Metrics

Version	Score	Severity	Vector String
3.1	2.2	Low	CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N

Opam packages affected (1)

conf-vim

Products affected (1)

Product	Vendor	Version
vim	vim	Contact your AMD Customer Engineering representative

References (8)

https://github.com/vim/vim/security/advisories/GHSA-gmqx-prf2-8mwf
https://github.com/vim/vim/commit/4e5b9e31cb7484ad156f
https://github.com/vim/vim/releases/tag/v9.2.0078
http://www.openwall.com/lists/oss-security/2026/02/27/11
https://github.com/vim/vim/security/advisories/GHSA-gmqx-prf2-8mwf
https://github.com/vim/vim/commit/4e5b9e31cb7484ad156f
https://github.com/vim/vim/releases/tag/v9.2.0078
http://www.openwall.com/lists/oss-security/2026/02/27/11