CVE-2026-28420

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 v3 4.4 MEDIUM

4.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 2.5

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/vim/vim/commit/bb6de2105b160e729c34063	Patch
https://github.com/vim/vim/releases/tag/v9.2.0076	Product
https://github.com/vim/vim/security/advisories/GHSA-rvj2-jrf9-2phg	Patch Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/02/27/9	Mailing List Patch Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:vim:vim:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-02-27 22:16

Updated : 2026-03-04 20:47

NVD link : CVE-2026-28420

Mitre link : CVE-2026-28420

CVE.ORG link : CVE-2026-28420

JSON object : View

Products Affected

vim

vim

CWE

CWE-122

Heap-based Buffer Overflow

CWE-125

Out-of-bounds Read

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