Bug 2443484 (CVE-2026-28420) - CVE-2026-28420 vim: Vim: Information disclosure and denial of service via crafted Unicode characters in terminal emulator
Summary: CVE-2026-28420 vim: Vim: Information disclosure and denial of service via cra...
Keywords:
Status: NEW
Alias: CVE-2026-28420
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2443487 2443490 2443790
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-02-27 23:02 UTC by OSIDB Bzimport
Modified: 2026-09-10 11:43 UTC (History)
23 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:66336 0 None None None 2026-09-10 06:31:34 UTC
Red Hat Product Errata RHSA-2026:66348 0 None None None 2026-09-10 08:56:10 UTC
Red Hat Product Errata RHSA-2026:66366 0 None None None 2026-09-10 11:43:04 UTC

Description OSIDB Bzimport 2026-02-27 23:02:50 UTC 
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.
Comment 5 errata-xmlrpc 2026-09-10 06:31:31 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:66336 https://access.redhat.com/errata/RHSA-2026:66336
Comment 6 errata-xmlrpc 2026-09-10 08:56:08 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:66348 https://access.redhat.com/errata/RHSA-2026:66348
Comment 7 errata-xmlrpc 2026-09-10 11:43:01 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:66366 https://access.redhat.com/errata/RHSA-2026:66366
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