CVE-2026-73076

Command execution via overwritten vimball installation record

Published Aug 11, 2026 · Updated Aug 11, 2026

Code injection in Vim before 9.2.0847 allows attackers to execute commands by installing a crafted vimball archive. A .VimballRecord archive member overwrites the plugin's installation record, and vimball#RmVimball() later passes its unchecked Ex commands to :execute. A user must install the attacker-controlled archive and trigger a later vimball operation; commands then run with that user's privileges.

CVSS severity8.4
High
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Vim before 9.2.0847 allows attackers to execute commands by installing a crafted vimball archive. A .VimballRecord archive member overwrites the plugin's installation record, and vimball#RmVimball() later passes its unchecked Ex commands to :execute. A user must install the attacker-controlled archive and trigger a later vimball operation; commands then run with that user's privileges.

The record

CVE
CVE-2026-73076
Published
Aug 11, 2026
Updated
Aug 11, 2026
Vendor
Vim
Product
Vim
Classifications
CWE-94, CWE-829, T1204.002, T1059
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 9.2.0847

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Vim · Vimversion=< 9.2.0847

Published CVSS scores

7.3Red HatCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
8.4GitHubCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-829Inclusion of Functionality from Untrusted Control Sphere
T1204.002Malicious File
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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