CVE-2026-28420

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 Vims terminal emulator when processing maximum combining characters from Unicode supplementary planes. Version 9.2.0076 fixes the issue.

Risk Information

Base Score

4.4

MODERATE

Vector

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

EPSS Score

Exploitation Probability

0.005

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2026-28420 are affected in Vim 9.2.75	Windows

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234