CVE-2026-13126 Foxit PDF Editor/Reader Annotation Use-After-Free Remote Code Execution Vulnerability

High 7.8 Published Updated

A use-after-free vulnerability in Foxit PDF Editor and Reader allows remote attackers to execute arbitrary code or cause a denial of service via crafted PDF files.

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-2026-13126?

CVE-2026-13126 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

The embedded JavaScript in the PDF deleted the pages, making the object invalid. The application attempted to perform a write operation on the invalid pop-up annotations, resulting in the program crashing.

Weakness: CWE-416

Which versions are affected by CVE-2026-13126?

It affects 2 products.

Products include Foxit Pdf Editor, Foxit Pdf Reader.

How do I fix CVE-2026-13126?

No fix has been published for CVE-2026-13126 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-2026-13126 being exploited?

There is no known exploitation of CVE-2026-13126 in the wild and no public exploit code.

All Foxit Pdf Editor vulnerabilities

Sources

Also known as GHSA-x96h-38x4-vxv6.

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