CVE-2024-0261Public exploitNetwork attack vector

Unauthenticated service crash via RNFR buffer overflow

Published Jan 7, 2024 · Updated Jun 3, 2025

Buffer overflow in the RNFR handler in Matthias Wandel Ftpdmin 0.96 allows remote attackers to crash the FTP service via crafted RNFR commands. The handler accepts oversized rename-path arguments across successive RNFR commands, allowing 272 bytes before EIP and 119 bytes after it to overwrite control flow. The passwordless FTP service exposes this path to any connected client; the CVE record bounds the reported impact to service interruption.

CVSS severity7.5
High
EPSS probability1.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Buffer overflow in the RNFR handler in Matthias Wandel Ftpdmin 0.96 allows remote attackers to crash the FTP service via crafted RNFR commands. The handler accepts oversized rename-path arguments across successive RNFR commands, allowing 272 bytes before EIP and 119 bytes after it to overwrite control flow. The passwordless FTP service exposes this path to any connected client; the CVE record bounds the reported impact to service interruption.

The record

CVE
CVE-2024-0261
Published
Jan 7, 2024
Updated
Jun 3, 2025
Vendor
Matthias Wandel
Product
Ftpdmin
Classifications
CWE-404, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 7, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.96

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Matthias Wandel · Ftpdminversion=0.96

Published CVSS scores

5.0VulDBAV:N/AC:L/Au:N/C:N/I:N/A:P
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-404Improper Resource Shutdown or Release
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo