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CVE-2006-3216

Published: Jun 24, 2006Updated: Apr 16, 2026 Sources: CVE List NVDNVD-CWE-Other
NVD MITRE
5.0CVSSMEDIUM
EPSS Score
1.8%
Top 24.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Clearswift MAILsweeper for SMTP before 4.3.20 and MAILsweeper for Exchange before 4.3.20 allows remote attackers to cause a denial of service via (1) non-ASCII characters in a reverse DNS lookup result from a Received header, which leads to a Receiver service stop, and (2) unspecified vectors involving malformed messages, which causes "unpredictable behavior" that prevents the Security service from processing more messages.

CVSS Vector Breakdown

AV:NAC:LAu:NC:NI:NA:P
Exploitability
AV:NAccess Vector
Network
AC:LAccess Complexity
Low
Au:NAuthentication
None
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:PAvailability
Partial
Open in CVSS calculator →

Weaknesses

NVD-CWE-Other

Affected Products

mailsweeper for exchangeclearswift
On-prem
Security Products / secure-gateway-vpn
mailsweeper for smtpclearswift
On-prem
Security Products / secure-gateway-vpn
n/an/a
clearswiftcommercialGBSecurity Products

Exploitability

Official Patch Available

References

http://download.mimesweeper.com/www/TechnicalDocumentation/ReadMe_MSW_4%2C3%2C20.htm
download.mimesweeper.com
http://secunia.com/advisories/20756
secunia.com
http://www.osvdb.org/26738
osvdb.org
and 5 more references View all →

Timeline

Published
Jun 24, 2006
Last Updated
Apr 16, 2026

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