Critical severity9.8NVD Advisory· Published Dec 19, 2025· Updated Jun 17, 2026

CVE-2023-53959

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Filezilla/Filezilla2 versions
cpe:2.3:a:filezilla-project:filezilla_client:3.63.1:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:filezilla-project:filezilla_client:3.63.1:*:*:*:*:*:*:*
- (no CPE)range: = 3.63.1

Patches

Vulnerability mechanics

References

www.exploit-db.com/exploits/51267nvdExploitThird Party AdvisoryVDB Entry
www.vulncheck.com/advisories/filezilla-client-dll-hijacking-via-missing-textshapingdllnvdThird Party Advisory
filezilla-project.orgnvdProduct

News mentions

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