CVE-2026-91795 Foxit PDF Editor/Reader FileOpen Uninitialized Variable Remote Code Execution Vulnerability
An attacker can execute arbitrary code by tricking a user into opening a specially crafted PDF file in Foxit PDF Editor or 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-2026-91795?
CVE-2026-91795 is a high-severity memory corruption 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 FileOpen plugin did not adequately validate certain encryption metadata in specially crafted PDF files. This could leave an internal pointer in an invalid state, resulting in chained read and write access violations and potentially enabling arbitrary code execution.
Weakness: CWE-822
Which versions are affected by CVE-2026-91795?
It affects 2 products.
Products include Foxit Pdf Editor, Foxit Pdf Reader.
How do I fix CVE-2026-91795?
No fix has been published for CVE-2026-91795 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-91795 being exploited?
There is no known exploitation of CVE-2026-91795 in the wild and no public exploit code.
Other vulnerabilities in Foxit Pdf Editor
Sources
Also known as GHSA-pmw8-7x25-6jmx.