VULNERABILITY INTELLIGENCE

CVE-2023-53959

CVSS score9.8 CRITICAL
EPSS probability0.85%
CISA KEVNot currently listed
Published2025-12-19
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

FileZilla Client 3.63.1 contains a DLL hijacking vulnerability that allows attackers to execute malicious code by placing a crafted TextShaping.dll in the application directory. Attackers can generate a reverse shell payload using msfvenom and replace the missing DLL to achieve remote code execution when the application launches.

Weakness classification

  • disclosure@vulncheck.com: CWE-427

Primary references