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CVE-2021-4069— Use After Free in vim/vim

Quick assessment

Affected
vim vim/vim
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Vim是一款基于UNIX平台的编辑器。 vim 存在资源管理错误漏洞，该漏洞源于在 src/ex_docmd.c 中的 ex_open() 函数中存在释放后使用。

AI Predicted 7.8 Difficulty: Hard EPSS 1.29% · P68

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2021-4069

Vulnerability Information
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Vulnerability Title
Use After Free in vim/vim
Source: CVE Program / CVE List V5
Vulnerability Description
vim is vulnerable to Use After Free
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
Vim 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vim是一款基于UNIX平台的编辑器。 vim 存在资源管理错误漏洞，该漏洞源于在 src/ex_docmd.c 中的 ex_open() 函数中存在释放后使用。
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/vim unspecified ~ 8.2 -

II. Public POCs for CVE-2021-4069

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-4069

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Patches & Fixes for CVE-2021-4069 (1)

Vendor Advisories for CVE-2021-4069 (2)

Mailing List Discussions for CVE-2021-4069 (5)

IV. Related Vulnerabilities

Same product: vim/vim
Same vendor: vim
Same weakness: CWE-416

V. Comments for CVE-2021-4069

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