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CVE-2006-6423

79
FAUCET Score

CVE-2006-6423 describes a pre-authentication stack-based buffer overflow in the IMAP service of MailEnable Professional and Enterprise Editions (versions 2.0-2.35 and 1.6-1.84 respectively). This critical vulnerability, with a CVSS score of 10.0, allows remote unauthenticated attackers to execute arbitrary code on affected systems by sending a crafted parameter and a long string. While not listed on the KEV catalog, exploit modules are available in Metasploit and ExploitDB, indicating readily available exploit code, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
1.1CPE matchmatch criteria
cpe:2.3:a:mailenable:mailenable_enterprise:1.1:*:*:*:*:*:*:*
1.2CPE matchmatch criteria
cpe:2.3:a:mailenable:mailenable_enterprise:1.2:*:*:*:*:*:*:*
1.11CPE matchmatch criteria
cpe:2.3:a:mailenable:mailenable_enterprise:1.11:*:*:*:*:*:*:*
1.12CPE matchmatch criteria
cpe:2.3:a:mailenable:mailenable_enterprise:1.12:*:*:*:*:*:*:*
1.13CPE matchmatch criteria
cpe:2.3:a:mailenable:mailenable_enterprise:1.13:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

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

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

Exploit Intelligence

EPSS Score
69.45%
Probability of exploitation in next 30 days
EPSS Percentile
99.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
Metasploit: MailEnable IMAPD (2.34/2.35) Login Request Buffer Overflow · Dec 11, 2006
ExploitDB: EDB-16475 · Apr 30, 2010
This CVE's current EPSS score of 0.6945 is in the 99th percentile among its peer group of 51,553 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, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

secunia.com / advisories/23201
secunia.com / secunia_research/2006-73/advisory
PatchVendor Advisory
securityreason.com / securityalert/2022
exchange.xforce.ibmcloud.com / vulnerabilities/30796
mailenable.com / hotfix
PatchVendor Advisory
securityfocus.com / archive/1/454075/100/0/threaded
securityfocus.com / bid/21492