CVE-2006-2203

Unspecified vulnerability in Kerio MailServer before 6.1.4 has unknown impact and remote attack vectors related to a "possible bypass of attachment filter."

Published: 2006-05-05 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2006-2203 is rated Moderate Risk (48.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.18%). Mandatory action: Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2006-2203

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.40% 1.18% +0.79%
2 2025-03-17 0.23% 0.40% +0.16%
3 2024-12-17 0.23%

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-2203

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.4 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
10.0 4.9 [email protected]

Weakness enumeration for CVE-2006-2203

Affected software / configurations for CVE-2006-2203

Vendor Product Version Raw CPE
kerio kerio_mailserver 6.0.0 cpe:2.3:a:kerio:kerio_mailserver:6.0.0:*:*:*:*:*:*:*
kerio kerio_mailserver 6.0.1 cpe:2.3:a:kerio:kerio_mailserver:6.0.1:*:*:*:*:*:*:*
kerio kerio_mailserver 6.0.2 cpe:2.3:a:kerio:kerio_mailserver:6.0.2:*:*:*:*:*:*:*
kerio kerio_mailserver 6.0.3 cpe:2.3:a:kerio:kerio_mailserver:6.0.3:*:*:*:*:*:*:*
kerio kerio_mailserver 6.0.4 cpe:2.3:a:kerio:kerio_mailserver:6.0.4:*:*:*:*:*:*:*
kerio kerio_mailserver 6.0.5 cpe:2.3:a:kerio:kerio_mailserver:6.0.5:*:*:*:*:*:*:*
kerio kerio_mailserver 6.0.6 cpe:2.3:a:kerio:kerio_mailserver:6.0.6:*:*:*:*:*:*:*
kerio kerio_mailserver 6.0.7 cpe:2.3:a:kerio:kerio_mailserver:6.0.7:*:*:*:*:*:*:*
kerio kerio_mailserver 6.0.8 cpe:2.3:a:kerio:kerio_mailserver:6.0.8:*:*:*:*:*:*:*
kerio kerio_mailserver 6.1.3_patch_1 cpe:2.3:a:kerio:kerio_mailserver:6.1.3_patch_1:*:*:*:*:*:*:*

References for CVE-2006-2203

cvelogic Threat Intelligence