Out-of-bounds Read Affecting vim-enhanced package, versions <2:8.2.2637-26.el9_8.21


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.19% (8th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-RHEL9-VIMENHANCED-19712174
  • published13 Sept 2026
  • disclosed27 Feb 2026

Introduced: 27 Feb 2026

CVE-2026-28420  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade RHEL:9 vim-enhanced to version 2:8.2.2637-26.el9_8.21 or higher.
This issue was patched in RHSA-2026:66366.

NVD Description

Note: Versions mentioned in the description apply only to the upstream vim-enhanced package and not the vim-enhanced package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

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 Base Scores

version 3.1