CVE-2026-91789 Foxit PDF Editor/Reader U3D File Parsing Integer Overflow Remote Code Execution Vulnerability
Attackers can achieve remote code execution via crafted U3D files due to an integer overflow in Foxit PDF Editor and Reader.
- 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-2026-91789?
CVE-2026-91789 is a high-severity vulnerability in Foxit Pdf Editor, published on 23 Sep 2026. 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
Foxit PDF Editor/Reader’s U3D/GIF texture decoding path contained insufficient validation of image dimensions and related size information. Under certain conditions, this could lead to an incorrectly sized memory allocation and a subsequent out-of-bounds write during pixel processing, potentially resulting in remote code execution.
Weakness: CWE-787
Which versions are affected by CVE-2026-91789?
It affects 2 products.
Products include Foxit Pdf Editor, Foxit Pdf Reader.
How do I fix CVE-2026-91789?
No fix has been published for CVE-2026-91789 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-91789 being exploited?
There is no known exploitation of CVE-2026-91789 in the wild and no public exploit code.
Other vulnerabilities in Foxit Pdf Editor
Sources
Also known as GHSA-h787-m92q-vv52.