CVE-2025-55158mediumCWE-415

CVE-2025-55158: medium-severity vulnerability in vim

Vim double-free vulnerability during Vim9 script import operations

Published · Updated

Follow this CVE+ Monitor vim

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.9epss 0.4%
Vim is an open source, command line text editor. In versions from 9.1.1231 to before 9.1.1406, when processing nested tuples during Vim9 script import operations, an error during evaluation can trigger a double-free in Vim’s internal typed value (typval_T) management. Specifically, the clear_tv() function may attempt to free memory that has already been deallocated, due to improper lifetime handling in the handle_import / ex_import code paths. The vulnerability can only be triggered if a user explicitly opens and executes a specially crafted Vim script. This issue has been patched in version 9.1.1406.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
vim · vim
Related CVEs — vim

In the same product, most dangerous first.

CVE-2025-27423HIGHImproper Input Validation in VimEPSS 22.5%CVE-2026-28417MEDIUMVim has OS Command Injection in netrwEPSS 1.4%CVE-2026-44656MEDIUMVim: OS Command Injection via 'path' completionEPSS 0.9%CVE-2025-53906MEDIUMVim has path traversal issue with zip.vim and special crafted zip archivesEPSS 0.9%CVE-2026-33412MEDIUMVim affected by Command injection via newline in glob()EPSS 0.9%CVE-2026-42307MEDIUMVim: OS Command Injection in netrwEPSS 0.8%