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CVE-2006-6406

16
FAUCET Score

CVE-2006-6406 describes a bypass vulnerability in Clam AntiVirus (ClamAV) version 0.88.6, allowing remote attackers to circumvent virus detection. This is achieved by embedding invalid characters within base64 encoded content in multipart/mixed MIME files, as demonstrated with the EICAR test file. The vulnerability has a CVSS score of 5.0 (medium severity), indicating a network-based attack with low complexity that could lead to partial integrity compromise. There is no evidence of active exploitation, no publicly available exploit code in common frameworks like Metasploit or Nuclei, and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
0.88.6CPE matchmatch criteria
cpe:2.3:a:clam_anti-virus:clamav:0.88.6:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.18%
Probability of exploitation in next 30 days
EPSS Percentile
86.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0318 is in the 82nd percentile among its peer group of 23,723 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, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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

kolab.org / security/kolab-vendor-notice-14.txt
secunia.com / advisories/23362
secunia.com / advisories/23379
secunia.com / advisories/23411
secunia.com / advisories/23460
debian.org / security/2006/dsa-1238
mandriva.com / security/advisories
novell.com / linux/security/advisories/2006_78_clamav.html
quantenblog.net / security/virus-scanner-bypass
ExploitVendor Advisory
securityfocus.com / archive/1/453654/100/0/threaded
securityfocus.com / bid/21461
vupen.com / english/advisories/2006/4948
vupen.com / english/advisories/2006/5113