# PDF-XChange Editor U3D File Parsing Memory Corruption Remote Code Execution Vulnerability **Advisory IDs:** - ZDI-22-1367 - ZDI-CAN-18630 **CVE ID:** - CVE-2022-42377 **CVSS Score:** - 7.8, AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H **Affected Vendors:** - PDF-XChange **Affected Products:** - PDF-XChange Editor **Vulnerability Details:** - This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability, such as visiting a malicious page or opening a malicious file. - The flaw occurs in the parsing of U3D files due to improper validation of user-supplied data, leading to memory corruption. An attacker can leverage this vulnerability to execute code in the context of the current process. **Additional Details:** - PDF-XChange has issued an update to correct this vulnerability. More details can be found at: https://www.tracker-software.com/product/pdf-xchange-editor/history **Disclosure Timeline:** - 2022-09-02 - Vulnerability reported to vendor - 2022-10-07 - Coordinated public release of advisory **Credit:** - Mat Powell of Trend Micro Zero Day Initiative