CVE-2025-65403 — MEDIUM (6.5)

Vulnerability Description

A buffer overflow in the g_cfg.MaxUsers component of LightFTP v2.0 allows attackers to cause a Denial of Service (DoS) via a crafted input.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Hfiref0X	Lightftp	2.0

Related Weaknesses (CWE)

CWE-120

References

https://github.com/hfiref0x/LightFTPProduct
https://shimo.im/docs/9030JMJpv4IM4NkwExploitThird Party Advisory

FAQ

What is CVE-2025-65403?

CVE-2025-65403 is a vulnerability with a CVSS score of 6.5 (MEDIUM). A buffer overflow in the g_cfg.MaxUsers component of LightFTP v2.0 allows attackers to cause a Denial of Service (DoS) via a crafted input.

How severe is CVE-2025-65403?

CVE-2025-65403 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-65403?

Check the references section above for vendor advisories and patch information. Affected products include: Hfiref0X Lightftp.