CVE-2006-0357: Grant Averett Cerberus FTP Server 2.32, and possibly earlier versions, allows remote attackers to cause an uns

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MEDIUM 5.0DOWNGRADE

CVE-2006-0357 is a medium-severity flaw (CVSS 5.0) affecting cerberus ftp server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Grant Averett Cerberus FTP Server 2.32, and possibly earlier versions, allows remote attackers to cause an unspecified denial of service via a long string that does not contain a valid FTP command.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	3.1% (top 12%)
CISA exploited list	No
Published	2006-01-22
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: grant averett

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

Am I affected?

Timeline

2006-01-22 20:03 UTCPublished CVE record published
2026-06-16 22:20 UTCUpdated Record last modified

grant averett cerberus ftp server DOWNGRADE

Affected: 2.32

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.32

1. Check installed version

apt-cache policy cerberus-ftp-server || rpm -q cerberus-ftp-server || cerberus-ftp-server --version

2. No fixed release: DOWNGRADE to a release before 2.32 (Debian / Ubuntu)

apt-cache madison cerberus-ftp-server sudo apt install cerberus-ftp-server=<VERSION_BEFORE_2.32> sudo apt-mark hold cerberus-ftp-server

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

dnf --showduplicates list cerberus-ftp-server sudo dnf downgrade cerberus-ftp-server-<VERSION_BEFORE_2.32> sudo dnf versionlock add cerberus-ftp-server

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: Cerberus FTP Server 2.32 - Denial of Service

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-2006-0357?

cerberus ftp server: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2006-0357 being exploited?

CVE-2006-0357 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-2006-0357 affect?

CVE-2006-0357 affects cerberus ftp server. Severity is medium (CVSS 5.0). Grant Averett Cerberus FTP Server 2.32, and possibly earlier versions, allows remote attackers to cause an unspecified denial of service via a long string that does not contain a valid FTP command.

How urgent is CVE-2006-0357?

Priority 44/100. Public exploit reference

Related CVEs

CVE-2017-6880 CRITICAL 9.8 DOWNGRADE Buffer overflow in Cerberus FTP Server 8.0.10.3 allows remote attackers to cause a denial of service (daemon c
CVE-2001-1295 MEDIUM 5.0 UPGRADE Directory traversal vulnerability in Cerberus FTP Server 1.5 and earlier allows remote attackers to read arbit

References

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