CVE-2026-28422

A flaw was found in Vim, an open-source command-line text editor. A local user could exploit a stack-buffer-overflow vulnerability in the build_stl_str_hl() function by rendering a statusline with a multi-byte fill character on a very wide terminal. This could lead to an integrity impact, where data might be modified.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.