CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
AI Score
Confidence
High
Exim through 4.97.1 misparses a multiline RFC 2231 header filename, and
thus remote attackers can bypass a $mime_filename extension-blocking
protection mechanism, and potentially deliver executable attachments to the
mailboxes of end users.