CVE-2009-3663: n/a vulnerability

CVE-2009-3663: Format string vulnerability in the h_readrequest function in http.c in httpdx Web Server 1.4 allows remote...

Format string vulnerability in the h_readrequest function in http.c in httpdx Web Server 1.4 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via format string specifiers in the Host header.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 06:38 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2009-3663 is a flaw in httpdx Web Server 1.4 where a crafted Host header can crash the service or potentially run code. The sources do not show active exploitation, but a public exploit reference exists. Exposure should be treated as legacy internet-facing web server risk. Likely limited to legacy systems running httpdx Web Server 1.4. Risk is highest where the service is reachable from untrusted networks, including public internet exposure or unauthenticated internal web access. Prioritize remediation if httpdx Web Server 1.4 is still deployed, especially externally. The product appears legacy, but remote unauthenticated crash or code execution potential makes confirmed exposure unacceptable. Mitigation focus: Inventory and identify any httpdx Web Server 1.4 instances.; Check vendor changelog or guidance for a fixed release.; Upgrade, replace, or retire affected legacy httpdx deployments..

Prepared: Jun 28, 2026, 18:15 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Execution behavior lookup

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CVE-2009-3663 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Oct 11, 2009, 22:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
httpdx-hostheader-format-string(53205)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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