RCE in Vim
CVE-2026-43961
A flaw was found in Vim's netrw plugin. A crafted filename containing quote characters and expression fragments can break out of the quoted context during mark/unmark operations, allowing arbitrary Vimscript execution. This can be leveraged to run shell commands with the privileges of the user running Vim.
Vulnerability class: RCE (Remote Code Execution)
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
- secalert@redhat.com (x_refsource_REDHAT, issue-tracking)
- secalert@redhat.com
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2026-43961?
- CVE-2026-43961 is a high-severity vulnerability in Vim, classified under Code Injection. CVSS score: 7.8/10. Published 2026-08-19.
- How severe is CVE-2026-43961?
- High severity. CVSS v3 base score is 7.8 out of 10.