CVE-2003-0561: Multiple buffer overflows in IglooFTP PRO 3.8 allow remote FTP servers to execute arbitrary code via (1) a lon

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HIGH 7.5DOWNGRADE

CVE-2003-0561 is a high-severity flaw (CVSS 7.5) affecting iglooftp pro. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple buffer overflows in IglooFTP PRO 3.8 allow remote FTP servers to execute arbitrary code via (1) a long FTP banner, or long responses to the client commands (2) USER, (3) PASS, (4) ACCT, and possibly other commands.

Why this priority

High severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	3.8% (top 10%)
CISA exploited list	No
Published	2003-08-18
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: iglooftp

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2003-08-18 04:00 UTCPublished CVE record published
2026-06-16 22:02 UTCUpdated Record last modified

iglooftp iglooftp pro DOWNGRADE

Affected: 3.8

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.8

1. Check installed version

apt-cache policy iglooftp-pro || rpm -q iglooftp-pro || iglooftp-pro --version

2. No fixed release: DOWNGRADE to a release before 3.8 (Debian / Ubuntu)

apt-cache madison iglooftp-pro sudo apt install iglooftp-pro=<VERSION_BEFORE_3.8> sudo apt-mark hold iglooftp-pro

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list iglooftp-pro sudo dnf downgrade iglooftp-pro-<VERSION_BEFORE_3.8> sudo dnf versionlock add iglooftp-pro

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: IglooFTP 0.6.1 - Banner Parsing Buffer Overflow
Exploit-DB: IglooFTP PRO 3.8 - Multiple Buffer Overflow Vulnerabilities (1)
Exploit-DB: IglooFTP PRO 3.8 - Multiple Buffer Overflow Vulnerabilities (2)

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2003-0561?

iglooftp pro: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2003-0561 being exploited?

CVE-2003-0561 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2003-0561 affect?

CVE-2003-0561 affects iglooftp pro. Severity is high (CVSS 7.5). Multiple buffer overflows in IglooFTP PRO 3.8 allow remote FTP servers to execute arbitrary code via (1) a long FTP banner, or long responses to the client commands (2) USER, (3) PASS, (4) ACCT, and possibly other commands.

How urgent is CVE-2003-0561?

Priority 54/100. High severity; Public exploit reference

References

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