CVE-2025-63685CRITICAL 9.8EPSS p28.7%

CVE-2025-63685CVE-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.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.36% probability of exploitation · percentile 28.7% · 2026-08-03T12:00:16Z
Published2025-11-20
Last modified2025-12-16

Underlying weaknesses· 1

CWE-491

References

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

1

TypeTargetConfidenceTier
WeaknessPublic cloneable() Method Without Final ('Object Hijack')cwe-4910%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.