CVE-2025-69627 Use after free in n/a

High 8.4 Published 13 Apr 2026 Updated 5 Jul 2026

A heap use-after-free in Nitro PDF Pro's JavaScript mailDoc method allows attackers to cause application crashes via crafted input.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-69627?

CVE-2025-69627 is a high-severity use after free vulnerability in n/a, published on 13 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Nitro PDF Pro for Windows 14.41.1.4 contains a heap use-after-free vulnerability in the implementation of the JavaScript method this.mailDoc(). During execution, an internal XID object is allocated and then freed prematurely, after which the freed pointer is still passed into UI and logging helper functions. Because the freed memory region may contain unpredictable heap data or remnants of attacker-controlled JavaScript strings, downstream routines such as wcscmp() may process invalid or stale pointers. This can result in access violations and non-deterministic crashes.

Weakness: CWE-416

Which versions are affected by CVE-2025-69627?

It affects 1 product.

Products include Gonitro Nitro Pdf Pro.

How do I fix CVE-2025-69627?

No fix has been published for CVE-2025-69627 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-2025-69627 being exploited?

There is no known exploitation of CVE-2025-69627 in the wild and no public exploit code.

Sources

Also known as GHSA-phj3-hcm2-mjhc.