CVE-2004-1207: The Serious engine, as used in (1) Alpha Black Zero Intrepid Protocol 1.04 and earlier, (2) Nitro family, and

This month

MEDIUM 5.0MITIGATE

CVE-2004-1207 is a medium-severity flaw (CVSS 5.0) affecting seriousengine. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Serious engine, as used in (1) Alpha Black Zero Intrepid Protocol 1.04 and earlier, (2) Nitro family, and (3) Serious Sam Second Encounter 1.07 allows remote attackers to cause a denial of service (server crash) via a large number of UDP join requests that exceeds the maximum player limit, as originally reported for Alpha Black Zero.

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	3.6% (top 11%)
CISA exploited list	No
Published	2005-01-10
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: serioussam

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

Am I affected?

Timeline

2005-01-10 05:00 UTCPublished CVE record published
2026-06-16 22:07 UTCUpdated Record last modified

serioussam seriousengine MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

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

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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: Alpha Black Zero 1.04 - Remote 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-2004-1207?

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

Is CVE-2004-1207 being exploited?

CVE-2004-1207 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-2004-1207 affect?

CVE-2004-1207 affects seriousengine. Severity is medium (CVSS 5.0). The Serious engine, as used in (1) Alpha Black Zero Intrepid Protocol 1.04 and earlier, (2) Nitro family, and (3) Serious Sam Second Encounter 1.07 allows remote attackers to cause a denial of service (server crash) via a large number of UD

How urgent is CVE-2004-1207?

Priority 45/100. Public exploit reference

References

← Back to latest CVEs