CVE-2026-43961

high

Description

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.

References

https://github.com/vim/vim/security/advisories/GHSA-66hr-7p6x-x5j3

https://bugzilla.redhat.com/show_bug.cgi?id=2460434

https://access.redhat.com/security/cve/CVE-2026-43961

http://www.openwall.com/lists/oss-security/2026/05/14/7

Details

Source: Mitre, NVD

Published: 2026-08-19

Updated: 2026-08-26

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:L/AC:L/Au:S/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00014