CVE-2026-28420

Publication date 27 February 2026

Last updated 18 March 2026

Ubuntu priority

Cvss 3 Severity Score

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

Status

Show unmaintained releases

Package	Ubuntu Release	Status
vim	25.10 questing	Fixed 2:9.1.0967-1ubuntu6.1
	24.04 LTS noble	Fixed 2:9.1.0016-1ubuntu7.10
	22.04 LTS jammy	Fixed 2:8.2.3995-1ubuntu2.26
	20.04 LTS focal	Fixed 2:8.1.2269-1ubuntu5.32+esm2
	18.04 LTS bionic	Fixed 2:8.0.1453-1ubuntu1.13+esm14
	16.04 LTS xenial	Fixed 2:7.4.1689-3ubuntu1.5+esm29
	14.04 LTS trusty	Fixed 2:7.4.052-1ubuntu3.1+esm23

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
vim	Upstream: bb6de21

Severity score breakdown

Parameter	Value
Base score	4.4 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity impact	Low
Availability impact	Low
Vector	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

References

Related Ubuntu Security Notices (USN)

USN-8101-1
Vim vulnerabilities
16 March 2026