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CVE-2025-5330· NVD / CVE Program· CNA VulDB

FreeFloat FTP Server RETR Command buffer overflow

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

MediumCVSS 6.9 · v4.0—No exploit No fix recorded

Noroxi analysis

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Published
May 29, 2025
Updated
Jun 17, 2026
EPSS
0.8% · 54th percentile
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Report tools

JSON

Action score

27

Monitor

Low priority for now.

CVSS
27 / 40 · 6.9 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.8%

CISA SSVC decision

Exploitation
proof of concept
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · VulDB
6.9
NVD has not scored this yet; the score shown is the CNA’s.

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
freefloatfreefloat ftp server

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • freefloat freefloat ftp server1.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (VulDB). Independent of NVD's CPE analysis and usually ahead of it.

  • FreeFloat FTP Server

    • 1.0affected

Same product

freefloat: all records

Other highest-scoring records for the same primary product.

  • CVE-2012-5106Stack-based buffer overflow in FreeFloat FTP Server 1.0 allows remote authenticated users to execute arbitrary code via a long string in a P
    44Plan
  • CVE-2012-10030FreeFloat FTP Server Arbitrary File Upload
    38Monitor
  • CVE-2019-25614Free Float FTP 1.0 STOR Command Remote Buffer Overflow
    37Monitor
  • CVE-2025-5548FreeFloat FTP Server NOOP Command buffer overflow
    31Monitor
  • CVE-2012-10023FreeFloat FTP Server USER Command Buffer Overflow
    28Monitor
  • CVE-2025-5667FreeFloat FTP Server REIN Command buffer overflow
    27Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2025-55485 days apartFreeFloat FTP Server NOOP Command buffer overflow
    31Monitor
  • CVE-2025-52951 days apartFreeFloat FTP Server PORT Command buffer overflow
    27Monitor
  • CVE-2025-53561 days apartFreeFloat FTP Server BYE Command buffer overflow
    27Monitor
  • CVE-2025-53571 days apartFreeFloat FTP Server PWD Command buffer overflow
    27Monitor
  • CVE-2025-52213 days apartFreeFloat FTP Server QUOTE Command buffer overflow
    27Monitor
  • CVE-2025-55495 days apartFreeFloat FTP Server PASV Command buffer overflow
    27Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
X

Weakness class (CWE)

CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer

CVSS vector

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-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records