CVE-2002-0336: Buffer overflow in Galacticomm Worldgroup FTP server 3.20 and earlier allows remote attackers to cause a denia

This month

HIGH 7.5DOWNGRADEDOWNGRADE

CVE-2002-0336 is a high-severity flaw (CVSS 7.5) affecting worldgroup, worldgroup lite personal server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in Galacticomm Worldgroup FTP server 3.20 and earlier allows remote attackers to cause a denial of service, and possibly execute arbitrary code, via a LIST command containing a large number of / (slash), * (wildcard), and .. characters.

Why this priority

High severity
EPSS top 8%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	5.1% (top 8%)
CISA exploited list	No
Published	2002-06-25
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: galacticomm technologies

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

Am I affected?

Timeline

2002-06-25 04:00 UTCPublished CVE record published
2026-06-16 21:57 UTCUpdated Record last modified

galacticomm technologies worldgroup DOWNGRADE

Affected: 3.20

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.20

1. Check installed version

apt-cache policy worldgroup || rpm -q worldgroup || worldgroup --version

2. No fixed release: DOWNGRADE to a release before 3.20 (Debian / Ubuntu)

apt-cache madison worldgroup sudo apt install worldgroup=<VERSION_BEFORE_3.20> sudo apt-mark hold worldgroup

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

dnf --showduplicates list worldgroup sudo dnf downgrade worldgroup-<VERSION_BEFORE_3.20> sudo dnf versionlock add worldgroup

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.

galacticomm technologies worldgroup lite personal server DOWNGRADE

Affected: 3.20

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.20

1. Check installed version

apt-cache policy worldgroup-lite-personal-server || rpm -q worldgroup-lite-personal-server || worldgroup-lite-personal-server --version

2. No fixed release: DOWNGRADE to a release before 3.20 (Debian / Ubuntu)

apt-cache madison worldgroup-lite-personal-server sudo apt install worldgroup-lite-personal-server=<VERSION_BEFORE_3.20> sudo apt-mark hold worldgroup-lite-personal-server

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

dnf --showduplicates list worldgroup-lite-personal-server sudo dnf downgrade worldgroup-lite-personal-server-<VERSION_BEFORE_3.20> sudo dnf versionlock add worldgroup-lite-personal-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: Galacticomm Worldgroup 3.20 - Remote FTP 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-2002-0336?

worldgroup: downgrade or apply the listed mitigation; worldgroup lite personal server: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2002-0336 being exploited?

CVE-2002-0336 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-2002-0336 affect?

CVE-2002-0336 affects worldgroup, worldgroup lite personal server. Severity is high (CVSS 7.5). Buffer overflow in Galacticomm Worldgroup FTP server 3.20 and earlier allows remote attackers to cause a denial of service, and possibly execute arbitrary code, via a LIST command containing a large number of / (slash), * (wildcard), and ..

How urgent is CVE-2002-0336?

Priority 54/100. High severity; EPSS top 8%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2002-0335 HIGH 10.0 DOWNGRADE DOWNGRADE Buffer overflow in Galacticomm Worldgroup web server 3.20 and earlier allows remote attackers to cause a denia

References

← Back to latest CVEs