CVE-2026-28420

MediumCVSS 4.4/10Last modified Jun 17, 2026

Description

Vim is an open source, command line text editor. Prior to version 9.2.0076, a heap-based buffer overflow WRITE and an out-of-bounds READ exist in Vim's terminal emulator when processing maximum combining characters from Unicode supplementary planes. Version 9.2.0076 fixes the issue.

Metrics

CVSS 3.1 4.4/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

Weakness enumeration

CWE-122 CWE-125

Affected software

Vendor	Product	Versions
vim	vim	< 9.2.0076

References

https://github.com/vim/vim/commit/bb6de2105b160e729c34063Patch
https://github.com/vim/vim/releases/tag/v9.2.0076Product
https://github.com/vim/vim/security/advisories/GHSA-rvj2-jrf9-2phgPatch, Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/02/27/9Mailing List, Patch, Third Party Advisory

Timeline

Published: Feb 27, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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