CVE-2006-6406
MEDIUM · CVSS 5.0EPSS 3.3%EU EUVD
Clam AntiVirus (ClamAV) 0.88.6 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
- 3.3% (88th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2006-6389)
- 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-2006-6389 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- clam anti-virus / clamav
References
- http://kolab.org/security/kolab-vendor-notice-14.txt
- http://secunia.com/advisories/23362
- http://secunia.com/advisories/23379
- http://secunia.com/advisories/23411
- http://secunia.com/advisories/23460
- http://www.debian.org/security/2006/dsa-1238
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:230
- http://www.novell.com/linux/security/advisories/2006_78_clamav.html
- 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
- http://www.vupen.com/english/advisories/2006/4948
- http://www.vupen.com/english/advisories/2006/5113
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
Query CVEs from your AI assistant
The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.
Add the CVE brain