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CVE-2021-31503

Quick assessment

Affected
OpenText Brava! Desktop
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.

Opentext OpenText Brava!是加拿大OpenText（Opentext）公司的一款基于浏览器的通用文档查看器。该产品支持查看、注释和编辑多种类型的文档。 OpenText Brava 存在缓冲区错误漏洞，该漏洞允许远程攻击者在受影响的OpenText Brava上执行任意代码。该漏洞需要用户交互才能利用，目标必须访问恶意页面或打开恶意文件。

AI Predicted 6.4 Difficulty: Hard EPSS 1.38% · P70
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I. Basic Information for CVE-2021-31503

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
This vulnerability allows remote attackers to execute arbitrary code on affected installations of OpenText Brava! Desktop Build 16.6.3.84 (package 16.6.3.134). User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of IGS files. The issue results from the lack of proper initialization of a pointer prior to accessing it. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-12690.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
使用未经初始化的指针
Source: CVE Program / CVE List V5
Vulnerability Title
OpenText Brava! 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Opentext OpenText Brava!是加拿大OpenText（Opentext）公司的一款基于浏览器的通用文档查看器。该产品支持查看、注释和编辑多种类型的文档。 OpenText Brava 存在缓冲区错误漏洞，该漏洞允许远程攻击者在受影响的OpenText Brava上执行任意代码。该漏洞需要用户交互才能利用，目标必须访问恶意页面或打开恶意文件。
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
OpenText Brava! Desktop Build 16.6.3.84 (package 16.6.3.134) -

II. Public POCs for CVE-2021-31503

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III. Intelligence Information for CVE-2021-31503

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IV. Related Vulnerabilities

Same product: Brava! Desktop
Same vendor: OpenText
Same weakness: CWE-824

V. Comments for CVE-2021-31503

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