CVE-2025-63685 Code injection in n/a
Attackers can execute arbitrary code by placing a malicious DLL in the application's startup directory, exploiting insecure library loading.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-63685?
CVE-2025-63685 is a critical code injection vulnerability in n/a, published on 20 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Quark Cloud Drive v3.23.2 has a DLL Hijacking vulnerability. This vulnerability stems from the insecure loading of system libraries. Specifically, the application does not validate the path or signature of [regsvr32.exe] it loads. An attacker can place a crafted malicious DLL in the application's startup directory, which will be loaded and executed when the user launches the program.
Weakness: CWE-491
Which versions are affected by CVE-2025-63685?
It affects 1 product.
Products include Quark Quark Cloud Drive.
How do I fix CVE-2025-63685?
No fix has been published for CVE-2025-63685 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2025-63685 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-63685 exists.
Sources
Also known as GHSA-4wm7-8hvv-947f.