Vulnerability DatabaseCVE-2026-28420
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CVE-2026-28420
Published:February 27, 2026
Updated:April 23, 2026
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.
Affected Packages
https://github.com/vim/vim.git (GITHUB):
Affected version(s) >=v9.1.1357 <v9.2.0076
Fix Suggestion:
Update to version v9.2.0076
Related Resources (4)
https://github.com/vim/vim/security/advisories/GHSA-rvj2-jrf9-2phg
https://github.com/vim/vim/commit/bb6de2105b160e729c34063
https://github.com/vim/vim/releases/tag/v9.2.0076
http://www.openwall.com/lists/oss-security/2026/02/27/9
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CVSS v4
Base Score:
4.8
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.4
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
LOW
Weakness Type (CWE)
Out-of-bounds Read
CWE-125
Heap-based Buffer Overflow
CWE-122
EPSS
Base Score:
0.01