CVE-2006-4000

Barracuda Spam Firewall vulnerability

CVSS

4.0

EPSS

5.7%

EPSS pct

92th

Exploited

No known

Directory traversal vulnerability in cgi-bin/preview_email.cgi in Barracuda Spam Firewall (BSF) 3.3.01.001 through 3.3.03.053 allows remote authenticated users to read arbitrary files via a .. (dot dot) in the file parameter.

Affected vendor

Barracuda Networks

Affected product

Barracuda Spam Firewall

CVSS vector

AV:N/AC:L/Au:S/C:P/I:N/A:N

Published

2006-08-05

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring single-factor authentication. Successful exploitation leads to partial impact to confidentiality.

Its EPSS score of 5.7% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 92% of all scored CVEs.

Check your external exposure to CVE-2006-4000

Confirm whether Barracuda Networks Barracuda Spam Firewall is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2006-4000.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2006-4000

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2006-4000 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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