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CVE-2026-73076— Vim: Arbitrary Command Execution via Malicious `.VimballRecord` Entry Replay in `vimball.vim`

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Vim组织开源的一款高效的文本编辑器。 Vim 9.2.0847之前版本存在安全漏洞，该漏洞源于runtime/autoload/vimball.vim允许特制的vimball成员覆盖安装记录，导致存储的Ex命令以运行Vim的用户权限执行。

CVSS 8.4 · High EPSS 0.13% · P2

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
vim vim < 9.2.0847 affected
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I. Basic Information for CVE-2026-73076

Vulnerability Information
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Vulnerability Title
Vim: Arbitrary Command Execution via Malicious `.VimballRecord` Entry Replay in `vimball.vim`
Source: CVE Program / CVE List V5
Vulnerability Description
Vim is an open source, command line text editor. Prior to 9.2.0847, runtime/autoload/vimball.vim allows a crafted vimball member named .VimballRecord to overwrite the installation record with attacker-chosen commands. When vimball#RmVimball() later processes the matching record entry, the stored Ex commands, including operating-system commands invoked through :!, execute with the privileges of the user running Vim. This issue is fixed in version 9.2.0847.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/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Vim组织开源的一款高效的文本编辑器。 Vim 9.2.0847之前版本存在安全漏洞，该漏洞源于runtime/autoload/vimball.vim允许特制的vimball成员覆盖安装记录，导致存储的Ex命令以运行Vim的用户权限执行。
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 < 9.2.0847 -

II. Public POCs for CVE-2026-73076

# 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.
Success marker: VULNERABLE: arbitrary Ex command replayed via .VimballRecord in vimball#RmVimball (sil! exe exestring); :! ran as uid=0 and exfiltrated: PROOF_cf79187882034417
Reproduction recording is a Pro+ exclusive
Watch the full sandbox build + live exploit recording for this CVE. Limited-time ¥499/mo.
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claude_code · 10027 chars
GitHub 复现环境（可 clone 直接跑）
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III. Intelligence Information for CVE-2026-73076

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Patches & Fixes for CVE-2026-73076 (1)

Vendor Advisories for CVE-2026-73076 (1)

Same Patch Batch · vim · 2026-08-11 · 8 CVEs total

CVE-2026-73078 8.6 HIGH Vim: Arbitrary Code Execution via Netrw Menu Construction
CVE-2026-73072 8.5 HIGH Vim: Heap Buffer Overflow when Loading a Spell File
CVE-2026-73077 8.4 HIGH Vim: Arbitrary Code Execution via Shell Keyword Lookup
CVE-2026-73074 7.1 HIGH Vim: Heap Buffer Overflow in Text Property Handling
CVE-2026-73070 6.8 MEDIUM Vim: Stack Buffer Overflow in the Vim Socket Server
CVE-2026-73075 4.6 MEDIUM Vim: Out-of-bounds Access in Popup Opacity Handling
CVE-2026-73071 3.3 LOW Vim: Use-after-free in JSON Decoding

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-73076

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