Is CVE-2006-6407 being actively exploited?

CVE-2006-6407 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2006-6407?

CVE-2006-6407 has a CVSS 2.0 base score of 5.0 (MEDIUM).

CVE-2006-6407

MEDIUM · CVSS 5.0EPSS 2.2%EU EUVD

F-Prot Antivirus for Linux x86 Mail Servers 4.6.6 allows remote attackers to bypass virus detection by inserting invalid characters into base64 encoded content in a multipart/mixed MIME file, as demonstrated with the EICAR test file.

Key facts

CVSS score: 5.0 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:L/Au:N/C:N/I:P/A:N
EPSS score: 2.2% (82th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2006-6390)
Published: December 10, 2006
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2006-6390 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

f-prot / f-prot antivirus

References

http://www.quantenblog.net/security/virus-scanner-bypass(Exploit, Vendor Advisory)
http://www.securityfocus.com/archive/1/453654/100/0/threaded
http://www.securityfocus.com/bid/21461

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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