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CVE-2021-34975— Foxit PDF Reader transitionToState Use-After-Free Remote Code Execution Vulnerability

Quick assessment

Affected
Foxit PDF Reader
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.

Foxit PDF Reader是中国福昕（Foxit）公司的一款PDF阅读器。 Foxit PDF Reader 存在缓冲区错误漏洞，该漏洞源于在对对象执行操作之前没有验证对象的存在性造成的。攻击者可利用该漏洞在受影响的Foxit PDF Reader安装上执行任意代码。

AI Predicted 7.8 Difficulty: Easy EPSS 0.35% · P28

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-34975

Vulnerability Information
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Vulnerability Title
Foxit PDF Reader transitionToState Use-After-Free Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Foxit PDF Reader transitionToState Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader. 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 implementation of the transitionToState method. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-15218.
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
Foxit PDF Reader 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Foxit PDF Reader是中国福昕（Foxit）公司的一款PDF阅读器。 Foxit PDF Reader 存在缓冲区错误漏洞，该漏洞源于在对对象执行操作之前没有验证对象的存在性造成的。攻击者可利用该漏洞在受影响的Foxit PDF Reader安装上执行任意代码。
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
Foxit PDF Reader 11.0.1.49938 -

II. Public POCs for CVE-2021-34975

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III. Intelligence Information for CVE-2021-34975

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Vendor Advisories for CVE-2021-34975 (1)

Same Patch Batch · Foxit · 2024-05-07 · 29 CVEs total

CVE-2021-34961 Foxit PDF Editor Ink Annotation Use-After-Free Remote Code Execution Vulnerability
CVE-2021-34948 Foxit PDF Reader Square Annotation Use-After-Free Remote Code Execution Vulnerability
CVE-2021-34949 Foxit PDF Reader Annotation Out-Of-Bounds Read Information Disclosure Vulnerability
CVE-2021-34950 Foxit PDF Reader Annotation Out-Of-Bounds Read Remote Code Execution Vulnerability
CVE-2021-34951 Foxit PDF Reader Annotation Use of Uninitialized Variable Information Disclosure Vulnerabi
CVE-2021-34952 Foxit PDF Reader Annotation Use-After-Free Remote Code Execution Vulnerability
CVE-2021-34953 Foxit PDF Reader Annotation Use of Uninitialized Variable Remote Code Execution Vulnerabil
CVE-2021-34954 Foxit PDF Editor StrikeOut Annotation Use-After-Free Remote Code Execution Vulnerability
CVE-2021-34955 Foxit PDF Editor Stamp Annotation Use-After-Free Remote Code Execution Vulnerability
CVE-2021-34956 Foxit PDF Editor Underline Annotation Use-After-Free Remote Code Execution Vulnerability
CVE-2021-34957 Foxit PDF Editor Highlight Annotation Use-After-Free Remote Code Execution Vulnerability
CVE-2021-34958 Foxit PDF Editor Text Annotation Use-After-Free Remote Code Execution Vulnerability
CVE-2021-34959 Foxit PDF Editor Square Annotation Use-After-Free Remote Code Execution Vulnerability
CVE-2021-34960 Foxit PDF Editor Circle Annotation Use-After-Free Remote Code Execution Vulnerability
CVE-2021-34976 Foxit PDF Reader PDF File Parsing Use-After-Free Information Disclosure Vulnerability
CVE-2021-34962 Foxit PDF Editor Caret Annotation Use-After-Free Remote Code Execution Vulnerability
CVE-2021-34963 Foxit PDF Editor PolyLine Annotation Use-After-Free Remote Code Execution Vulnerability
CVE-2021-34964 Foxit PDF Editor Polygon Annotation Use-After-Free Remote Code Execution Vulnerability
CVE-2021-34965 Foxit PDF Editor Squiggly Annotation Use-After-Free Remote Code Execution Vulnerability
CVE-2021-34967 Foxit PDF Editor Line Annotation Use-After-Free Remote Code Execution Vulnerability

Showing top 20 of 29 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: PDF Reader
Same vendor: Foxit
Same weakness: CWE-416

V. Comments for CVE-2021-34975

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