CVE-2026-28420
4.4
MEDIUM
CVSS 3.1
EPSS 0.01%
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.
How to fix CVE-2026-28420
To remediate CVE-2026-28420, upgrade the affected package to a fixed version below.
- Alpine/vim—upgrade to 9.2.0078-r0 or later
- —no fix listed
Is CVE-2026-28420 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 9.2.0078-r0
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L |