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CVE-2006-3277

24
FAUCET Score

CVE-2006-3277 describes a denial-of-service vulnerability affecting the SMTP service in MailEnable Standard, Professional, and Enterprise versions 1.92/2.0 and earlier. A remote attacker can trigger an application crash by sending a HELO command containing a null byte. This vulnerability has a CVSS score of 5.0 (medium severity) due to its network attack vector, low complexity, and partial availability impact. While not actively exploited in the wild, public exploit code exists via ExploitDB, though there is minimal community discussion or media coverage surrounding this older CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.00CPE matchmatch criteria
cpe:2.3:a:mailenable:mailenable_enterprise:*:*:*:*:*:*:*:*
<= 1.01CPE matchmatch criteria
cpe:2.3:a:mailenable:mailenable_enterprise:*:*:*:*:*:*:*:*
<= 1.1CPE matchmatch criteria
cpe:2.3:a:mailenable:mailenable_enterprise:*:*:*:*:*:*:*:*
<= 1.2CPE matchmatch criteria
cpe:2.3:a:mailenable:mailenable_enterprise:*:*:*:*:*:*:*:*
<= 1.02CPE matchmatch criteria
cpe:2.3:a:mailenable:mailenable_enterprise:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

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

Exploit Intelligence

EPSS Score
6.11%
Probability of exploitation in next 30 days
EPSS Percentile
92.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
ExploitDB: EDB-28103 · Jun 24, 2006
This CVE's current EPSS score of 0.0611 is in the 90th percentile among its peer group of 23,725 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

secunia.com / advisories/20790
Vendor Advisory
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/27387
divisionbyzero.be
Patch
divisionbyzero.be
mailenable.com / hotfix/mesmtpc.zip
Patch
osvdb.org / 26791
securityfocus.com / archive/1/438374/100/0/threaded
securityfocus.com / bid/18630
vupen.com / english/advisories/2006/2520
Vendor Advisory