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CVE-2026-73073— Vim: Arbitrary Ex Command Execution in C Omni-Completion

Quick assessment

Affected
vim vim
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Vim是组织开源的一款高效的文本编辑器。 Vim 9.2.0845之前版本存在安全漏洞，该漏洞源于runtime/autoload/ccomplete.vim中的StructMembers()函数使用未充分转义的typeref或typename值构造并执行vimgrep命令，可能导致用户调用C omni-completion时执行任意Ex和操作系统命令。

CVSS 7.1 · High EPSS 0.15% · P5

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
vim vim < 9.2.0845 affected
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I. Basic Information for CVE-2026-73073

Vulnerability Information
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Vulnerability Title
Vim: Arbitrary Ex Command Execution in C Omni-Completion
Source: CVE Program / CVE List V5
Vulnerability Description
Vim is an open source, command line text editor. Prior to 9.2.0845, StructMembers() in runtime/autoload/ccomplete.vim constructs and executes a vimgrep command using an insufficiently escaped typeref: or typename: value from a tags file, allowing an unterminated collection followed by a command separator to execute arbitrary Ex and operating-system commands when a user invokes C omni-completion with CTRL-X CTRL-O on a member access whose type is resolved from that tags file. This issue is fixed in version 9.2.0845.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Vim 软件供应链问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vim是组织开源的一款高效的文本编辑器。 Vim 9.2.0845之前版本存在安全漏洞，该漏洞源于runtime/autoload/ccomplete.vim中的StructMembers()函数使用未充分转义的typeref或typename值构造并执行vimgrep命令，可能导致用户调用C omni-completion时执行任意Ex和操作系统命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
vim vim < 9.2.0845 -

II. Public POCs for CVE-2026-73073

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
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claude_code · 8434 chars
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III. Intelligence Information for CVE-2026-73073

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Patches & Fixes for CVE-2026-73073 (1)

Vendor Advisories for CVE-2026-73073 (1)

Vendor Pages for CVE-2026-73073 (1)

IV. Related Vulnerabilities

Same product: vim
Same vendor: vim
Same weakness: CWE-94

V. Comments for CVE-2026-73073

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