High severity · published Aug 18, 2026
CVE-2026-73073
Vim: Arbitrary Ex Command Execution in C Omni-Completion
7.8
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VI
vim · vim
< 9.2.0845 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-73073
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-73073
Patch
https://github.com/vim/vim/commit/2f628d8104958fa7421664f792ca6d4f7a39a10f
Product
https://github.com/vim/vim/releases/tag/v9.2.0845
Patch
https://github.com/vim/vim/security/advisories/GHSA-cx73-phcg-3j5g
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