Nitro PDF Pro up to 14.41.1.4 on Windows app.alert null pointer dereference

Summaryinfo

A vulnerability, which was classified as problematic, was found in Nitro PDF Pro up to 14.41.1.4 on Windows. This vulnerability affects the function app.alert. Executing a manipulation can lead to null pointer dereference. The identification of this vulnerability is CVE-2025-69624. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic was found in Nitro PDF Pro up to 14.41.1.4 on Windows. This vulnerability affects the function app.alert. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. CVE summarizes:

Nitro PDF Pro for Windows 14.41.1.4 contains a NULL pointer dereference vulnerability in the JavaScript implementation of app.alert(). When app.alert() is called with more than one argument and the first argument evaluates to null (for example, app.alert(app.activeDocs, true) when app.activeDocs is null), the engine routes the call through a fallback path intended for non-string arguments. In this path, js_ValueToString() is invoked on the null value and returns an invalid string pointer, which is then passed to JS_GetStringChars() without validation. Dereferencing this pointer leads to an access violation and application crash when opening a crafted PDF.

This vulnerability was named CVE-2025-69624 since 01/09/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• Nitro

Name

• PDF Pro

Version

• 14.41.1.0
• 14.41.1.1
• 14.41.1.2
• 14.41.1.3
• 14.41.1.4

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