Foxit PDF Reader Annotation Use-After-Free Information Disclosure Vulnerability

CVE-2021-34969

What is CVE-2021-34969?

The vulnerability arises from a flaw in the handling of Annotation objects within Foxit PDF Reader. This flaw occurs due to the absence of adequate validation of an object's existence before executing operations on it. Exploitation of this issue requires user interaction, as it involves navigating to a malicious webpage or opening a malicious PDF file. Once exploited, an attacker could potentially disclose sensitive information or leverage this vulnerability alongside others to execute arbitrary code within the current process context.

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