CVE-2025-63685

critical · 9.8

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.

9.8

CVSS

0.4%

EPSS (exploit prob.)

31st

EPSS percentile

2025-11-20

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-491

Affected products

Vendor	Product	Affected versions
quark	quark_cloud_drive	3.23.2

Check a specific version with /api/v1/cve/match.

References

https://github.com/QIU-DIE/CVE/issues/5

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-63685