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CVE-2021-21958

Quick assessment

Affected
n/a Hancom
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.

Hancom Office是韩国Hancom公司的一款移动办公程序。该程序支持查看和编辑多种格式的文档。 Hancom Office 2020 11.0.0.2353版本存在缓冲区错误漏洞，该漏洞源于Hword HwordApp.dll功能存在基于堆的缓冲区溢出漏洞。一个特别制作的畸形文件可能导致内存损坏和潜在的任意代码执行。攻击者可以提供一个恶意文件来触发此漏洞。

AI Predicted 8.1 Difficulty: Easy EPSS 1.10% · P64
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I. Basic Information for CVE-2021-21958

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A heap-based buffer overflow vulnerability exists in the Hword HwordApp.dll functionality of Hancom Office 2020 11.0.0.2353. A specially-crafted malformed file can lead to memory corruption and potential arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.
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
Hancom Office 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hancom Office是韩国Hancom公司的一款移动办公程序。该程序支持查看和编辑多种格式的文档。 Hancom Office 2020 11.0.0.2353版本存在缓冲区错误漏洞，该漏洞源于Hword HwordApp.dll功能存在基于堆的缓冲区溢出漏洞。一个特别制作的畸形文件可能导致内存损坏和潜在的任意代码执行。攻击者可以提供一个恶意文件来触发此漏洞。
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
- Hancom Hancom Office 2020 11.0.0.2353 -

II. Public POCs for CVE-2021-21958

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III. Intelligence Information for CVE-2021-21958

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Other References for CVE-2021-21958 (1)

Same Patch Batch · n/a · 2022-02-16 · 50 CVEs total

CVE-2021-23682 7.3 HIGH Prototype Pollution
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CVE-2022-24984 JqueryForm.com Jquery Form Builder 安全漏洞
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CVE-2022-22880 Jeecg-boot 安全漏洞
CVE-2022-22881 Jeecg-Boot SQL注入漏洞
CVE-2022-22885 Hutool 安全漏洞
CVE-2022-24983 JqueryForm.com Jquery Form Builder 安全漏洞
CVE-2021-3578 Sourceforge mbsync 代码问题漏洞
CVE-2021-3773 netfilter 信息泄露漏洞
CVE-2021-3752 Linux kernel 竞争条件问题漏洞
CVE-2022-22853 Sourcecodester Hospital Patient Records Management System 跨站脚本漏洞
CVE-2022-22945 VMware NSX-T 操作系统命令注入漏洞
CVE-2022-23804 KiCad Eda 缓冲区错误漏洞
CVE-2022-23803 KiCad Eda 缓冲区错误漏洞
CVE-2021-21966 Texas Instruments Cc3200 SimpleLink Solution Nwp 环境问题漏洞
CVE-2021-39300 Hp Uefi 安全漏洞
CVE-2021-39299 Hp Uefi 安全漏洞
CVE-2021-39301 Hp Uefi 安全漏洞

Showing top 20 of 50 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same vendor: n/a
Same weakness: CWE-122

V. Comments for CVE-2021-21958

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