CVE-2026-28421

Description

Vim is an open source, command line text editor. Versions prior to 9.2.0077 have a heap-buffer-overflow and a segmentation fault (SEGV) exist in Vim's swap file recovery logic. Both are caused by unvalidated fields read from crafted pointer blocks within a swap file. Version 9.2.0077 fixes the issue.

Affected Platforms

Weakness Type

CWE-20, CWE-122

References

• https://github.com/vim/vim/commit/65c1a143c331c886dc28
• https://github.com/vim/vim/releases/tag/v9.2.0077
• https://github.com/vim/vim/security/advisories/GHSA-r2gw-2x48-jj5p
• http://www.openwall.com/lists/oss-security/2026/02/27/10