CVE-2025-66494 Foxit PDF Reader PDF File Parsing Use-After-Free Remote Code Execution Vulnerability
A remote attacker can execute arbitrary code by exploiting a use-after-free flaw in Foxit PDF Reader's file parsing logic.
- 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-2025-66494?
CVE-2025-66494 is a high-severity use after free vulnerability in Foxit Pdf Editor, published on 19 Dec 2025. 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
A use-after-free vulnerability exists in the PDF file parsing of Foxit PDF Reader before 2025.2.1, 14.0.1, and 13.2.1 on Windows. A PDF object managed by multiple parent objects could be freed while still being referenced, potentially allowing a remote attacker to execute arbitrary code.
Weakness: CWE-416
Which versions are affected by CVE-2025-66494?
It affects 2 products.
Products include Foxit Pdf Editor, Foxit Pdf Reader.
How do I fix CVE-2025-66494?
No fix has been published for CVE-2025-66494 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-2025-66494 being exploited?
There is no known exploitation of CVE-2025-66494 in the wild and no public exploit code.
Other vulnerabilities in Foxit Pdf Editor
Sources
Also known as GHSA-4q8q-3r7h-5j3f.