CVE-2017-16571

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 8.3.1.21155. 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 references to the app object from FormCalc. The issue results from the lack of proper validation of user-supplied data, which can result in a type confusion condition. An attacker can leverage this to execute code in the context of the current process. Was ZDI-CAN-5072.

• CWE-843
• CWE-704

• https://www.foxitsoftware.com/support/security-bulletins.phpPatch, Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-17-882Third Party Advisory, VDB Entry
• https://www.foxitsoftware.com/support/security-bulletins.phpPatch, Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-17-882Third Party Advisory, VDB Entry

Published

Dec 20, 2017

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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