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Vulnerability record · public intelligence
CVE-2004-0840
UNKNOWN

CVE-2004-0840

Published Oct 16, 2004 · Updated Oct 23, 2026

Severity · CVSSUNKNOWN · 10.0
Known exploitationNot listed
EPSS / likelihood30.29%
QFinch risk score20 / 100

Original summary

Normalized public record · Updated Oct 23, 2026

The SMTP (Simple Mail Transfer Protocol) component of Microsoft Windows XP 64-bit Edition, Windows Server 2003, Windows Server 2003 64-bit Edition, and the Exchange Routing Engine component of Exchange Server 2003, allows remote attackers to execute arbitrary code via a malicious DNS response message containing length values that are not properly validated.

Publisher and source text is retained separately from QFinch interpretation.

QFinch assessment

The SMTP (Simple Mail Transfer Protocol) component of Microsoft Windows XP 64-bit Edition, Windows Server 2003, Windows Server 2003 64-bit Edition, and the Exchange Routing Engine component of Exchange Server 2003, allows remote attackers to execute arbitrary code via a malicious DNS response message containing length values that are not properly validated.

Evidence: public source records

Affected products

Affected scope reported by the available public evidence
Affected package, product or rangeFix status
Consult the referenced vendor advisory for affected versions.Consult source advisory

Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.

Remediation

Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.

  1. Confirm the affected product and reachable code path exist in your environment.
  2. Apply the vendor-supported patch or mitigation from the primary advisory.
  3. Rescan the exact deployed revision and retain verification evidence.
Review primary references

Evidence coverage

CVENVDEPSS
SSVC priority
LOW
Confidence
20%
Aliases
None reported

Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.

Sources and record history

  1. oval:org.mitre.oval:def:2300 ↗
  2. oval:org.mitre.oval:def:5509 ↗
  3. 11374 ↗
  4. MS04-035 ↗
  5. win-ms04035-patch(17660) ↗
  6. win2k3-smtp-execute-code(17621) ↗
  7. oval:org.mitre.oval:def:3460 ↗
  8. VU#394792 ↗

Record history

Published Oct 16, 2004 · Last refreshed Oct 23, 2026

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