CVE-2006-4081

CVE-2006-4081 is a high-severity vulnerability in Barracuda Networks Barracuda Spam Firewall with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

preview_email.cgi in Barracuda Spam Firewall (BSF) 3.3.01.001 through 3.3.03.053 allows remote attackers to execute commands via shell metacharacters ("|" pipe symbol) in the file parameter. NOTE: the attack can be extended to arbitrary commands by the presence of CVE-2006-4000.

Frequently asked questions

What is CVE-2006-4081?
preview_email.cgi in Barracuda Spam Firewall (BSF) 3.3.01.001 through 3.3.03.053 allows remote attackers to execute commands via shell metacharacters ("|" pipe symbol) in the file parameter. NOTE: the attack can be extended to arbitrary commands by the presence of CVE-2006-4000.
How severe is CVE-2006-4081?
CVE-2006-4081 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2006-4081 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-4081?
CVE-2006-4081 primarily affects Barracuda Networks Barracuda Spam Firewall. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-4081?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2006-4081 published?
CVE-2006-4081 was published on 2006-08-11 and last updated on 2026-06-16.

References

Affected products (2)

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