CVE-2026-28421

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.

• CWE-20
• CWE-122

• https://github.com/vim/vim/commit/65c1a143c331c886dc28Patch
• https://github.com/vim/vim/releases/tag/v9.2.0077Product
• https://github.com/vim/vim/security/advisories/GHSA-r2gw-2x48-jj5pPatch, Vendor Advisory
• http://www.openwall.com/lists/oss-security/2026/02/27/10Mailing List, Patch, Third Party Advisory

Published

Feb 27, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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