CVE-2009-0803: n/a vulnerability

CVE-2009-0803: SmoothWall SmoothGuardian, as used in SmoothWall Firewall, NetworkGuardian, and SchoolGuardian 2008, when t...

SmoothWall SmoothGuardian, as used in SmoothWall Firewall, NetworkGuardian, and SchoolGuardian 2008, when transparent interception mode is enabled, uses the HTTP Host header to determine the remote endpoint, which allows remote attackers to bypass access controls for Flash, Java, Silverlight, and probably other technologies, and possibly communicate with restricted intranet sites, via a crafted web page that causes a client to send HTTP requests with a modified Host header.

UnknownCVSS not scoredNot KEV-listedUpdatedSep 16, 2024, 18:59 UTC (UTC+00:00)

Security readout for executives and security teams

This issue affects legacy SmoothWall SmoothGuardian deployments using transparent interception. A crafted web page may cause a user's browser or plugin to send requests with a manipulated Host header, bypassing web access controls and possibly reaching restricted intranet sites. Exposure appears limited to old SmoothWall products using SmoothGuardian with transparent interception enabled. Organizations without these 2008-era deployments, or without that mode enabled, are unlikely to be affected based on the provided sources. Treat as a legacy-control weakness. It is most urgent where SmoothWall filtering protects schools, regulated users, or intranet resources, but the provided evidence does not support emergency active-exploitation claims. Mitigation focus: Inventory SmoothWall Firewall, NetworkGuardian, and SchoolGuardian 2008 deployments.; Determine whether SmoothGuardian transparent interception mode is enabled.; Check SmoothWall and CERT guidance for vendor-supported fixes or configuration changes..

Prepared: Jun 28, 2026, 11:23 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

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2009-0803 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup

Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Mar 4, 2009, 16:00 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

1Source 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

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.