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Microsoft Exchange 5.5 allows a remote attacker to relay email (i.e. spam) using encapsulated SMTP addresses, even if the anti-relaying features are enabled.
| Base Score | 5 |
|---|---|
| Vector String | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| Base Severity | Unknown |
| Version | 2.0 |
| Attack Vector (AV) |