Foxit PDF Reader UAF in Annotation Handling Enables Remote Code Execution
CVE-2021-34974 Published on May 7, 2024
Foxit PDF Reader Annotation Use-After-Free Remote Code Execution Vulnerability
Foxit PDF Reader Annotation 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 handling of Annotation objects. 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-15167.
Weakness Type
What is a Dangling pointer Vulnerability?
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
CVE-2021-34974 has been classified to as a Dangling pointer vulnerability or weakness.
Products Associated with CVE-2021-34974
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Affected Versions
Foxit PDF Reader:- Version 11.0.1.49938 is affected.
- Version -, <= 11.0.1.49938 is affected.
- Version -, <= 10.1.5.37672 is affected.
- Version 11.0.1.49938 is affected.
- Version 11.0.0.49893 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.