CVE-2023-53959

EUVD-2025-204606
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 48%
Affected Products (NVD)
VendorProductVersion
filezilla-projectfilezilla_client
3.63.1
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
filezilla-projectfilezilla
3.63.1
CNA
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
filezilla
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
plucky
needs-triage
questing
needs-triage
xenial
needs-triage
Common Weakness Enumeration
References
https://filezilla-project.org/
https://www.exploit-db.com/exploits/51267
https://www.vulncheck.com/advisories/filezilla-client-dll-hijacking-via-missing-textshapingdll