{"id":"CVE-2025-63685","aliases":["EUVD-2025-198336","GHSA-4wm7-8hvv-947f"],"status":"published","title":"Quark Cloud Drive v3.23.2 has a DLL Hijacking vulnerability. This vulnerability stems from the...","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.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-12","score":0.00395,"percentile":0.34165,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-491"],"published":"2025-11-20T00:00:00Z","modified":"2026-11-05T13:10:00Z","products":[{"vendor":"quark","product":"quark_cloud_drive"}],"references":[{"url":"https://github.com/QIU-DIE/CVE/issues/5","tags":["Exploit","Issue Tracking","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-63685"},{"url":"https://github.com/advisories/GHSA-4wm7-8hvv-947f"}],"sources":{"cve":[{"id":"CVE-2025-63685","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.","status":"published","published":"2025-11-20T00:00:00Z","modified":"2025-11-21T14:32:54.749Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-491"],"updated_at":"2026-11-02T14:32:45.503988Z"}],"euvd":[{"id":"EUVD-2025-198336","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.","status":"published","published":"2025-11-20T00:00:00Z","modified":"2025-11-21T14:32:54Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T19:49:13.665045Z"}],"ghsa":[{"id":"GHSA-4wm7-8hvv-947f","title":"Quark Cloud Drive v3.23.2 has a DLL Hijacking vulnerability. This vulnerability stems from the...","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.","status":"published","published":"2025-11-20T21:30:32Z","modified":"2025-11-21T00:31:29Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-491"],"updated_at":"2026-11-02T15:04:54.759819Z"}],"nvd":[{"id":"CVE-2025-63685","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.","status":"published","published":"2025-11-20T21:16:06.37Z","modified":"2026-11-05T13:10:00.18Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-491"],"updated_at":"2026-11-05T19:55:51.56159Z"}]}}