CVE-2004-0329: FreeChat 1.1.1a allows remote attackers to cause a denial of service (crash) via certain unexpected strings, a

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MEDIUM 5.0DOWNGRADE

CVE-2004-0329 is a medium-severity flaw (CVSS 5.0) affecting freechat. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

FreeChat 1.1.1a allows remote attackers to cause a denial of service (crash) via certain unexpected strings, as demonstrated using "aaaaa".

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	1.7% (top 23%)
CISA exploited list	No
Published	2004-11-23
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: freechat

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

Am I affected?

Timeline

2004-11-23 05:00 UTCPublished CVE record published
2026-06-16 22:05 UTCUpdated Record last modified

freechat freechat DOWNGRADE

Affected: 0.1.1a · 1.1.1a

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.1.1a

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.1.1a (Debian / Ubuntu)

apt-cache madison freechat sudo apt install freechat=<VERSION_BEFORE_0.1.1a> sudo apt-mark hold freechat

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

dnf --showduplicates list freechat sudo dnf downgrade freechat-<VERSION_BEFORE_0.1.1a> sudo dnf versionlock add freechat

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-2004-0329?

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

Is CVE-2004-0329 being exploited?

CVE-2004-0329 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-2004-0329 affect?

CVE-2004-0329 affects freechat. Severity is medium (CVSS 5.0). FreeChat 1.1.1a allows remote attackers to cause a denial of service (crash) via certain unexpected strings, as demonstrated using "aaaaa".

How urgent is CVE-2004-0329?

Priority 42/100. Public exploit reference

References

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