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.

PUBLISHED Reserved 2026-02-27 | Published 2026-02-27 | Updated 2026-02-28 | Assigner GitHub_M

Problem types

CWE-20: Improper Input Validation

CWE-122: Heap-based Buffer Overflow

Product status

References

www.openwall.com/lists/oss-security/2026/02/27/10

github.com/vim/vim/security/advisories/GHSA-r2gw-2x48-jj5p

github.com/vim/vim/commit/65c1a143c331c886dc28

github.com/vim/vim/releases/tag/v9.2.0077

cve.org (CVE-2026-28421)

nvd.nist.gov (CVE-2026-28421)

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