CVE-2026-28421

Summary

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 Software

Weaknesses

• CWE-20: CWE-20: Improper Input Validation
• CWE-122: CWE-122: Heap-based Buffer Overflow

ADP Enrichment

CVE Program Container

Additional References

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

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: total

References

• https://github.com/vim/vim/security/advisories/GHSA-r2gw-2x48-jj5p
• https://github.com/vim/vim/commit/65c1a143c331c886dc28
• https://github.com/vim/vim/releases/tag/v9.2.0077

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