CVE-2023-53959

CRITICALCVSS 9.8/10EPSS 0.73%

Last modified

CVE-2023-53959 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 0.73% chance of exploitation in the next 30 days.

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.

Metrics

Weakness Enumeration

Affected Software

VendorProductVersions
Filezilla-ProjectFilezilla Client3.63.1

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is 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.
How severe is CVE-2023-53959?
CVE-2023-53959 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.73% probability of exploitation in the next 30 days.
How do I fix CVE-2023-53959?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

Related CVEs from 2023

Are you affected by CVE-2023-53959?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST