FreeFloat FTP Server NOOP Command buffer overflow

published 2025-06-04 17 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-16815

cvss: 7.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 15.9%; EPSS 15.9% chance of exploitation in 30 days, percentile 96%
public exploits: 1; Exploit-DB

A vulnerability, which was classified as critical, was found in FreeFloat FTP Server 1.0. Affected is an unknown function of the component NOOP Command Handler. The manipulation leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Timeline

2025-06-04 Published
2025-06-13 First public exploit (EDB-52323)

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 17 mo ago (2025-06-04)

Exploit prediction

15.88% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

EDB-52323 Freefloat FTP Server 1.0 - Remote Buffer Overflow remote, 2025-06-13
fitoxs.com https://fitoxs.com/exploit/exploit-181bb9e57fbeedb99be8435f014d23b3d936df3ff95db127e57d6832dc48df8f.txt referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	6.9	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
CNA	3.1	7.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CNA	3.0	7.3	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CNA	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P
CNA	4.0	6.9	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

FreeFloat FTP Server

Classification

Weakness

CWE-120 Buffer Copy without Checking Size of Input
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

fitoxs.com /exploit/exploit-181bb9e57fbeedb99be8435f014d23b3d936df3ff95db127e57d6832dc48df8f.txt
broken-link, exploit
vuldb.com /?id.310998
vdb-entry, third-party-advisory
vuldb.com /?ctiid.310998
signature, permissions-required, vdb-entry
vuldb.com /?submit.586982
third-party-advisory, vdb-entry

Sources

CVE List CVE-2025-5548
NVD CVE-2025-5548

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary