Code Injection in Vim - CVE-2026-43961

Vulnerability identifier: #VU131545

CSH Severity: Medium

CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-43961

CWE-ID: CWE-94

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to execute arbitrary Vimscript and shell commands.

The vulnerability exists due to improper control of generation of code in s:NetrwMarkFile() in the netrw plugin when unmarking files from the global marked-file list. A local user can create a crafted filename containing a double quote and induce the victim to mark and unmark that entry to execute arbitrary Vimscript and shell commands.

User interaction is required, and the issue only triggers on the second mf press for a given entry. Exploitation requires a Unix-like system on which filenames may contain a double quote.

Vim
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
SUSE Linux Micro
SUSE Linux Micro Extras
Ubuntu
openEuler
vim (Ubuntu package)
vim-filesystem
vim
vim-X11
vim-common
vim-debuginfo
vim-debugsource
vim-enhanced
vim-minimal
vim-small
vim-data-common
vim-small-debuginfo
gvim-debuginfo
gvim
vim-data
xxd
xxd-debuginfo

Install security update from vendor's website.

Vim - update to 9.2.0480
vim (Ubuntu package) - addressed in versions 2:7.4.052-1ubuntu3.1+esm28, 2:7.4.1689-3ubuntu1.5+esm34, 2:8.0.1453-1ubuntu1.13+esm19, 2:8.1.2269-1ubuntu5.32+esm7, 2:8.2.3995-1ubuntu2.31, 2:9.1.0016-1ubuntu7.15, 2:9.1.0967-1ubuntu6.6, 2:9.1.2141-1ubuntu4.3
vim-filesystem - addressed in versions 9.0-49, 9.0.2092-35
vim - addressed in versions 9.0-49, 9.0.2092-35
vim-X11 - addressed in versions 9.0-49, 9.0.2092-35
vim-common - addressed in versions 9.0-49, 9.0.2092-35
vim-debuginfo - addressed in versions 9.0-49, 9.0.2092-35
vim-debugsource - addressed in versions 9.0-49, 9.0.2092-35
vim-enhanced - addressed in versions 9.0-49, 9.0.2092-35
vim-minimal - addressed in versions 9.0-49, 9.0.2092-35
vim-small - addressed in versions 9.2.0530-slfo.1.1_1.1, 9.2.0530-150000.5.94.1, 9.2.0530-160000.1.1
vim-debugsource - addressed in versions 9.2.0530-slfo.1.1_1.1, 9.2.0530-150000.5.94.1, 9.2.0530-160000.1.1
vim - addressed in versions 9.2.0530-slfo.1.1_1.1, 9.2.0530-150000.5.94.1, 9.2.0530-160000.1.1
vim-debuginfo - addressed in versions 9.2.0530-slfo.1.1_1.1, 9.2.0530-150000.5.94.1, 9.2.0530-160000.1.1
vim-data-common - addressed in versions 9.2.0530-slfo.1.1_1.1, 9.2.0530-150000.5.94.1, 9.2.0530-160000.1.1
vim-small-debuginfo - addressed in versions 9.2.0530-slfo.1.1_1.1, 9.2.0530-150000.5.94.1, 9.2.0530-160000.1.1
gvim-debuginfo - update to 9.2.0530-150000.5.94.1
gvim - update to 9.2.0530-150000.5.94.1
vim-data - update to 9.2.0530-150000.5.94.1
xxd - update to 9.2.0530-160000.1.1
xxd-debuginfo - update to 9.2.0530-160000.1.1

• https://github.com/vim/vim/security/advisories/GHSA-66hr-7p6x-x5j3
• https://github.com/vim/vim/commit/8af0f098c3a42a28661d0295364e

• Code Injection in Vim
• SUSE update for vim
• SUSE update for vim
• SUSE update for vim
• SUSE update for vim
• openEuler 24.03 LTS SP3 update for vim
• openEuler 24.03 LTS SP1 update for vim
• SUSE update for vim
• Ubuntu update for vim
• openEuler 20.03 LTS SP4 update for vim
• openEuler 22.03 LTS SP4 update for vim