Buffer overflow in Xlightftpd Xlight Ftp Server
CVE-2023-53886
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.
Vulnerability class: Buffer Overflow
EPSS: 0.004 (29.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Xlightftpd Xlight Ftp Server — versions 3.9.3.6
- Xlightftpd Xlight_ftp_server — versions 3.9.3.6
Weakness classification (CWE)
References
- disclosure@vulncheck.com (Exploit, Third Party Advisory, exploit)
- disclosure@vulncheck.com (product, Vendor Advisory)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2023-53886?
- CVE-2023-53886 is a high-severity vulnerability in Xlightftpd Xlight Ftp Server, classified under Stack-based Buffer Overflow. CVSS score: 7.5/10. Published 2025-12-15.
- How severe is CVE-2023-53886?
- High severity. CVSS v3 base score is 7.5 out of 10.