CVE-2023-53959

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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://filezilla-project.org/	Product
https://www.exploit-db.com/exploits/51267	Exploit Third Party Advisory VDB Entry
https://www.vulncheck.com/advisories/filezilla-client-dll-hijacking-via-missing-textshapingdll	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:filezilla-project:filezilla_client:3.63.1:*:*:*:*:*:*:*

History

09 Apr 2026, 21:19

Type	Values Removed	Values Added
References	~~() https://filezilla-project.org/ -~~	() https://filezilla-project.org/ - Product
References	~~() https://www.exploit-db.com/exploits/51267 -~~	() https://www.exploit-db.com/exploits/51267 - Exploit, Third Party Advisory, VDB Entry
References	~~() https://www.vulncheck.com/advisories/filezilla-client-dll-hijacking-via-missing-textshapingdll -~~	() https://www.vulncheck.com/advisories/filezilla-client-dll-hijacking-via-missing-textshapingdll - Third Party Advisory
CPE		cpe:2.3:a:filezilla-project:filezilla_client:3.63.1:::::::*
First Time		Filezilla-project Filezilla-project filezilla Client

19 Dec 2025, 21:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-12-19 21:15

Updated : 2026-04-09 21:19

NVD link : CVE-2023-53959

Mitre link : CVE-2023-53959

CVE.ORG link : CVE-2023-53959

JSON object : View

Products Affected

filezilla-project

filezilla_client

CWE

CWE-427

Uncontrolled Search Path Element

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