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CVE-2009-0803

16
FAUCET Score

CVE-2009-0803 describes a bypass vulnerability in SmoothWall SmoothGuardian, SmoothWall Firewall, NetworkGuardian, and SchoolGuardian 2008 when transparent interception mode is active. The flaw allows remote attackers to bypass access controls for various web technologies and potentially communicate with restricted intranet sites by manipulating the HTTP Host header. This vulnerability has a CVSS score of 5.4, indicating a network-based attack with high complexity and a complete confidentiality impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2008CPE matchmatch criteria
cpe:2.3:a:smoothwall:networkguardian:2008:*:*:*:*:*:*:*
2008CPE matchmatch criteria
cpe:2.3:a:smoothwall:schoolguardian:2008:*:*:*:*:*:*:*
2008CPE matchmatch criteria
cpe:2.3:a:smoothwall:smoothguardian:2008:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.4MEDIUM

AV:N/AC:H/Au:N/C:C/I:N/A:N

Confidentiality Impact
COMPLETE
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.35%
Probability of exploitation in next 30 days
EPSS Percentile
81.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0236 is in the 71st percentile among its peer group of 19,954 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

kb.cert.org / vuls/id/435052
US Government Resource
kb.cert.org / vuls/id/MAPG-7M6SM7
US Government Resource
securityfocus.com / bid/33858
Vendor Advisory