CVE-2025-63685 | Quark Cloud Drive v3.23.2 has a DLL Hijacking vulnerability.… | CVSS 9.8 CRITICAL

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.

Metadata

CVE ID: CVE-2025-63685
State: PUBLISHED
Assigner: mitre
Reserved: 2025-10-27 00:00 UTC
Published: 2025-11-20 00:00 UTC
Last updated: 2025-11-21 14:32 UTC
Primary CWE: CWE-491
CWE-491 Public cloneable() Method Without Final ('Object Hij…
Vendor / Product: n/a / n/a
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: yes
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
n/a	n/a	—	n/a

Weakness (CWE)

CWE	Source	Description
—	cna	n/a
CWE-491	adp	CWE-491 Public cloneable() Method Without Final ('Object Hijack')

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	adp	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References (1)

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