CVE-2003-0554: NeoModus Direct Connect 1.0 build 9, and possibly other versions, allows remote attackers to cause a denial of

Routine

MEDIUM 5.0DOWNGRADE

CVE-2003-0554 is a medium-severity flaw (CVSS 5.0) affecting direct connect. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

NeoModus Direct Connect 1.0 build 9, and possibly other versions, allows remote attackers to cause a denial of service (connection and possibly memory exhaustion) via a flood of ConnectToMe requests containing arbitrary IP addresses and ports.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.3% (top 30%)
CISA exploited list	No
Published	2003-08-18
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: neomodus

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

neomodus direct connect DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy direct-connect || rpm -q direct-connect || direct-connect --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison direct-connect sudo apt install direct-connect=<VERSION_BEFORE_1.0> sudo apt-mark hold direct-connect

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

dnf --showduplicates list direct-connect sudo dnf downgrade direct-connect-<VERSION_BEFORE_1.0> sudo dnf versionlock add direct-connect

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.

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-2003-0554?

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

Is CVE-2003-0554 being exploited?

CVE-2003-0554 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-2003-0554 affect?

CVE-2003-0554 affects direct connect. Severity is medium (CVSS 5.0). NeoModus Direct Connect 1.0 build 9, and possibly other versions, allows remote attackers to cause a denial of service (connection and possibly memory exhaustion) via a flood of ConnectToMe requests containing arbitrary IP addresses and por

How urgent is CVE-2003-0554?

Priority 35/100. No elevated risk signals yet.

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CVE-2008-2954 HIGH 7.8 DOWNGRADE client/NmdcHub.cpp in Linux DC++ (linuxdcpp) before 0.707 allows remote attackers to cause a denial of service
CVE-2008-2953 MEDIUM 5.0 DOWNGRADE Linux DC++ (linuxdcpp) before 0.707 allows remote attackers to cause a denial of service (crash) via "partial

References

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