CVE-2004-2521: Mail server in Gattaca Server 2003 1.1.10.0 allows remote attackers to perform a denial of service (applicatio

Routine

MEDIUM 5.0MITIGATE

CVE-2004-2521 is a medium-severity flaw (CVSS 5.0) affecting gattaca server 2003. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Mail server in Gattaca Server 2003 1.1.10.0 allows remote attackers to perform a denial of service (application crash) via a large number of connections to TCP port (1) 25 (SMTP) or (2) 110 (POP).

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	1.8% (top 22%)
CISA exploited list	No
Published	2004-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: geeos team

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

Am I affected?

Timeline

2004-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:09 UTCUpdated Record last modified

geeos team gattaca server 2003 MITIGATE

Affected: 1.1.10.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1.10.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2004-2521?

gattaca server 2003: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2004-2521 being exploited?

CVE-2004-2521 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-2004-2521 affect?

CVE-2004-2521 affects gattaca server 2003. Severity is medium (CVSS 5.0). Mail server in Gattaca Server 2003 1.1.10.0 allows remote attackers to perform a denial of service (application crash) via a large number of connections to TCP port (1) 25 (SMTP) or (2) 110 (POP).

How urgent is CVE-2004-2521?

Priority 37/100. No elevated risk signals yet.

Related CVEs

CVE-2004-2522 MEDIUM 4.3 MITIGATE Cross-site scripting (XSS) vulnerability in web.tmpl in Gattaca Server 2003 1.1.10.0 allows remote attackers t
CVE-2004-2519 MEDIUM 5.0 MITIGATE Gattaca Server 2003 1.1.10.0 allows remote attackers to cause a denial of service (CPU consumption) via direct
CVE-2004-2518 MEDIUM 5.0 MITIGATE Gattaca Server 2003 1.1.10.0 allows remote attackers to obtain sensitive information via (1) a trailing null b

References

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