CVE-2004-0247: The client and server of Chaser 1.50 and earlier allow remote attackers to cause a denial of service (crash vi

This month

MEDIUM 5.0DOWNGRADEDOWNGRADE

CVE-2004-0247 is a medium-severity flaw (CVSS 5.0) affecting chaser client, chaser server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The client and server of Chaser 1.50 and earlier allow remote attackers to cause a denial of service (crash via exception) via a UDP packet with a length field that is greater than the actual data length, which causes Chaser to read unexpected memory.

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	3.4% (top 11%)
CISA exploited list	No
Published	2004-11-23
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: cauldron

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

cauldron chaser client DOWNGRADE

Affected: 1.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.5

1. Check installed version

apt-cache policy chaser-client || rpm -q chaser-client || chaser-client --version

2. No fixed release: DOWNGRADE to a release before 1.5 (Debian / Ubuntu)

apt-cache madison chaser-client sudo apt install chaser-client=<VERSION_BEFORE_1.5> sudo apt-mark hold chaser-client

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

dnf --showduplicates list chaser-client sudo dnf downgrade chaser-client-<VERSION_BEFORE_1.5> sudo dnf versionlock add chaser-client

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.

cauldron chaser server DOWNGRADE

Affected: 1.4.9 · 1.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.4.9

1. Check installed version

apt-cache policy chaser-server || rpm -q chaser-server || chaser-server --version

2. No fixed release: DOWNGRADE to a release before 1.4.9 (Debian / Ubuntu)

apt-cache madison chaser-server sudo apt install chaser-server=<VERSION_BEFORE_1.4.9> sudo apt-mark hold chaser-server

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

dnf --showduplicates list chaser-server sudo dnf downgrade chaser-server-<VERSION_BEFORE_1.4.9> sudo dnf versionlock add chaser-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: Cauldron Chaser 1.4/1.5 - Remote Denial of Service (1)
Exploit-DB: Cauldron Chaser 1.4/1.5 - Remote Denial of Service (2)

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-2004-0247?

chaser client: downgrade or apply the listed mitigation; chaser server: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2004-0247 being exploited?

CVE-2004-0247 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-2004-0247 affect?

CVE-2004-0247 affects chaser client, chaser server. Severity is medium (CVSS 5.0). The client and server of Chaser 1.50 and earlier allow remote attackers to cause a denial of service (crash via exception) via a UDP packet with a length field that is greater than the actual data length, which causes Chaser to read unexpec

How urgent is CVE-2004-0247?

Priority 45/100. Public exploit reference

References

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