CVE-2023-39501 PDF-XChange Editor OXPS File Parsing Untrusted Pointer Dereference Remote Code Execution Vulnerability

High 7.8 Published 3 May 2024 Updated 2 Aug 2024

Remote attackers can execute arbitrary code by tricking users into opening malicious OXPS files in PDF-XChange Editor.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2023-39501?

CVE-2023-39501 is a high-severity vulnerability in Pdf-Xchange Pdf-Tools, published on 3 May 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

PDF-XChange Editor OXPS File Parsing Untrusted Pointer Dereference Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. 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 parsing of OXPS files. The issue results from the lack of proper validation of a user-supplied value prior to dereferencing it as a pointer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-20034.

Weakness: CWE-822

Which versions are affected by CVE-2023-39501?

It affects 2 products.

Products include Pdf-Xchange Pdf-Tools, Pdf-Xchange Pdf-Xchange Editor.

How do I fix CVE-2023-39501?

No fix has been published for CVE-2023-39501 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-39501 being exploited?

There is no known exploitation of CVE-2023-39501 in the wild and no public exploit code.

All Pdf-Xchange Pdf-Tools vulnerabilities

Sources

Also known as GHSA-6mhf-pmqm-rjcx.