Code Injection in Vim - CVE-2026-73073

Vulnerability identifier: #VU139390

CSH Severity: High

CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-73073

CWE-ID: CWE-94

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation within the C omni-completion script in runtime/autoload/ccomplete.vim. A remote attacker can trick a victim to open a specially crafted file and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Vim
Ubuntu
openEuler
vim (Ubuntu package)
vim
vim-X11
vim-common
vim-debuginfo
vim-debugsource
vim-enhanced
vim-minimal
vim-filesystem

Install updates from vendor's website.

Vim - update to 9.2.0845
vim (Ubuntu package) - addressed in versions 2:7.4.052-1ubuntu3.1+esm33, 2:7.4.1689-3ubuntu1.5+esm39, 2:8.0.1453-1ubuntu1.13+esm24, 2:8.1.2269-1ubuntu5.32+esm13, 2:8.2.3995-1ubuntu2.36, 2:9.1.0016-1ubuntu7.20
vim - update to 9.0.2092-45
vim-X11 - update to 9.0.2092-45
vim-common - update to 9.0.2092-45
vim-debuginfo - update to 9.0.2092-45
vim-debugsource - update to 9.0.2092-45
vim-enhanced - update to 9.0.2092-45
vim-minimal - update to 9.0.2092-45
vim-filesystem - update to 9.0.2092-45

• https://github.com/vim/vim/security/advisories/GHSA-cx73-phcg-3j5g

• Remote code execution in Vim
• Ubuntu update for vim
• openEuler 24.03 LTS SP4 update for vim