CVE-2023-53886 - CVE House
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Status published Medium CVE-2023-53886

Xlight FTP Server 3.9.3.6 Stack Buffer Overflow Vulnerability via Execute Program

Vulnerability Description

Xlight FTP Server 3.9.3.6 contains a stack buffer overflow vulnerability in the 'Execute Program' configuration that allows attackers to crash the application. Attackers can trigger the vulnerability by inserting 294 characters into the program execution configuration, causing a denial of service condition.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Yehia Elghaly

References

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Medium 5.3
CVE-2019-25681
Xlight FTP Server 3.9.1 SEH Overwrite Buffer Overflow
High 8.6

Affected Vendor

Affected Software

Xlight FTP Server
Vulnerable Versions:
3.9.3.6

Timeline

Official Publish: December 15th, 2025
Last Modified: May 12th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

Weaknesses (CWE)

CWE-121

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1068 Exploitation for Privilege Escalation
Privilege Escalation
T1055 Process Injection
Defense Evasion
T1105 Ingress Tool Transfer
Command and Control
T1485 Data Destruction
Impact