CVE-2025-63685

9.8 criticalEPSS 0.4%

Critical (9.8) in quark quark cloud drive. EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.8 critical

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

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 33% of CVEs (scores of 2026-10-31)
CWE: CWE-491
Published: 2025-11-20
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

quark:quark_cloud_drive

References

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

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