CVE-2025-65403

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 63/100
Published: 2025-12-01 Modified: 2026-11-04 First seen: 2026-11-04 Status: active

Attack Surface

Network Low Complexity No Auth

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Required
S: Unchanged
C: None
I: None
A: High

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
hfiref0x lightftp 2.0

References & Advisories (2)

https://shimo.im/docs/9030JMJpv4IM4Nkw
Exploit Third Party Advisory

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.35%
Raw Score 0.003490
Percentile 28.9%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00349
2026-11-13
0.00349
2026-11-12
0.00349
2026-11-10
0.00349
2026-11-09
0.00349
2026-11-08
0.00349
2026-11-07
0.00349
2026-11-06
0.00349
2026-11-05
0.00349
2026-11-04
0.00349

Intelligence Sources

nvd ref →