CVE-2026-28420mediumCWE-122CWE-125

CVE-2026-28420: medium-severity vulnerability in vim

Vim has Heap-based Buffer Overflow and OOB Read in :terminal

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 4.4epss 0.2%
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.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
Affected products
vim · vim
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