7.8 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
6.6 Medium
AI Score
Confidence
High
0.018 Low
EPSS
Percentile
88.3%
The SMTP service in MERCUR Messaging 2005 before Service Pack 4 allows remote attackers to cause a denial of service (infinite loop) via a message in which neither the originator nor recipient address is known.