CVE-2002-2419: Direct connect text client (DCTC) client 0.83.3 allows remote attackers to cause a denial of service (crash) v

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HIGH 7.8DOWNGRADE

CVE-2002-2419 is a high-severity flaw (CVSS 7.8) affecting dctc. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Direct connect text client (DCTC) client 0.83.3 allows remote attackers to cause a denial of service (crash) via a string ending with a NULL byte character.

Why this priority

High severity

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

Risk facts

CVSS score	7.8 (High)
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-189
Published	2002-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: dctc project

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

Am I affected?

Timeline

2002-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:01 UTCUpdated Record last modified

dctc project dctc DOWNGRADE

Affected: 0.83.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.83.3

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.83.3 (Debian / Ubuntu)

apt-cache madison dctc sudo apt install dctc=<VERSION_BEFORE_0.83.3> sudo apt-mark hold dctc

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

dnf --showduplicates list dctc sudo dnf downgrade dctc-<VERSION_BEFORE_0.83.3> sudo dnf versionlock add dctc

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-2002-2419?

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

Is CVE-2002-2419 being exploited?

CVE-2002-2419 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-2002-2419 affect?

CVE-2002-2419 affects dctc. Severity is high (CVSS 7.8). Direct connect text client (DCTC) client 0.83.3 allows remote attackers to cause a denial of service (crash) via a string ending with a NULL byte character.

How urgent is CVE-2002-2419?

Priority 46/100. High severity

References

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