CVE-2026-57243 Foxit PDF Editor/Reader Page Out-of-bounds Read Vulnerability
An attacker can cause a denial of service by triggering a JavaScript reentrancy bug that leads to an out-of-bounds read and application crash.
- 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-2026-57243?
CVE-2026-57243 is a medium-severity memory corruption 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
During the process of page opening and form formatting, a JavaScript reentrancy results in an inconsistent document status. Subsequently, with outdated page information, the application attempts to access invalid addresses, causing the application to crash.
Weakness: CWE-125
Which versions are affected by CVE-2026-57243?
It affects 2 products.
Products include Foxit Pdf Editor, Foxit Pdf Reader.
How do I fix CVE-2026-57243?
No fix has been published for CVE-2026-57243 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-2026-57243 being exploited?
There is no known exploitation of CVE-2026-57243 in the wild and no public exploit code.
Other vulnerabilities in Foxit Pdf Editor
Sources
Also known as GHSA-9ppj-8p5h-jg89.