CVE-2026-57240 Foxit PDF Editor/Reader Form Field Use-After-Free Remote Code Execution Vulnerability
Attackers can execute arbitrary code or cause a crash by tricking users into opening a malicious PDF that triggers a use-after-free error in Foxit PDF products.
- 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-2026-57240?
CVE-2026-57240 is a high-severity use after free vulnerability in Foxit Pdf Editor, published on 8 Jul 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
When the application opens a PDF file and JavaScript deletes the PDF fields, the subsequent logic still uses the old field pointers, resulting in invalid pointer references and causing the application to crash.
Weakness: CWE-416
Which versions are affected by CVE-2026-57240?
It affects 2 products.
Products include Foxit Pdf Editor, Foxit Pdf Reader.
How do I fix CVE-2026-57240?
No fix has been published for CVE-2026-57240 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-2026-57240 being exploited?
There is no known exploitation of CVE-2026-57240 in the wild and no public exploit code.
Other vulnerabilities in Foxit Pdf Editor
Sources
Also known as GHSA-mvfx-5v77-ghpf.