Use After Free Affecting vim package, versions <2:9.0.2189-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.54% (45th percentile)

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  • Snyk IDSNYK-ECHOLATEST-VIM-17966608
  • published14 Jul 2026
  • disclosed22 Nov 2023

Introduced: 22 Nov 2023

CVE-2023-48706  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Echo:latest vim to version 2:9.0.2189-1 or higher.

NVD Description

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

Vim is a UNIX editor that, prior to version 9.0.2121, has a heap-use-after-free vulnerability. When executing a :s command for the very first time and using a sub-replace-special atom inside the substitution part, it is possible that the recursive :s call causes free-ing of memory which may later then be accessed by the initial :s command. The user must intentionally execute the payload and the whole process is a bit tricky to do since it seems to work only reliably for the very first :s command. It may also cause a crash of Vim. Version 9.0.2121 contains a fix for this issue.

CVSS Base Scores

version 3.1