CVE-2024-8821 PDF-XChange Editor U3D File Parsing Use-After-Free Information Disclosure Vulnerability
Remote attackers can disclose sensitive information and potentially execute arbitrary code via a malicious U3D file 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-2024-8821?
CVE-2024-8821 is a low-severity use after free vulnerability in Pdf-Xchange Pdf-Tools, published on 22 Nov 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 U3D File Parsing Use-After-Free Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information 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 U3D files. 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 in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-24216.
Weakness: CWE-416
Which versions are affected by CVE-2024-8821?
It affects 2 products.
Products include Pdf-Xchange Pdf-Tools, Pdf-Xchange Pdf-Xchange Editor.
How do I fix CVE-2024-8821?
No fix has been published for CVE-2024-8821 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2024-8821 being exploited?
There is no known exploitation of CVE-2024-8821 in the wild and no public exploit code.
Other vulnerabilities in Pdf-Xchange Pdf-Tools
- CVE-2025-6640 PDF-XChange Editor U3D File Parsing Use-After-Free Remote Code Execution Vulnerability
- CVE-2025-6642 PDF-XChange Editor U3D File Parsing Out-Of-Bounds Read Remote Code Execution Vulnerability
- CVE-2025-6644 PDF-XChange Editor U3D File Parsing Use-After-Free Remote Code Execution Vulnerability
- CVE-2025-6645 PDF-XChange Editor U3D File Parsing Use-After-Free Remote Code Execution Vulnerability
- CVE-2025-6647 PDF-XChange Editor U3D File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Sources
Also known as GHSA-x943-wjcx-6wrv.