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CVE-2021-3973— Heap-based Buffer Overflow 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 中存在缓冲区错误漏洞，该漏洞源于产品未能正确判断内存边界。攻击者可通过该漏洞导致缓冲区溢出。

AI Predicted 7.8 Difficulty: Moderate EPSS 1.67% · P75

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2021-3973

Vulnerability Information
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Vulnerability Title
Heap-based Buffer Overflow in vim/vim
Source: CVE Program / CVE List V5
Vulnerability Description
vim is vulnerable to Heap-based Buffer Overflow
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Vim 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vim是一款基于UNIX平台的编辑器。 Vim 中存在缓冲区错误漏洞，该漏洞源于产品未能正确判断内存边界。攻击者可通过该漏洞导致缓冲区溢出。
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 ~ 8.2.3611 -

II. Public POCs for CVE-2021-3973

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III. Intelligence Information for CVE-2021-3973

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Patches & Fixes for CVE-2021-3973 (1)

Vendor Advisories for CVE-2021-3973 (2)

Mailing List Discussions for CVE-2021-3973 (4)

Same Patch Batch · vim · 2021-11-19 · 3 CVEs total

CVE-2021-3968 Heap-based Buffer Overflow in vim/vim
CVE-2021-3974 Use After Free in vim/vim

IV. Related Vulnerabilities

Same product: vim/vim
Same vendor: vim
Same weakness: CWE-122

V. Comments for CVE-2021-3973

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