Vulnerability DatabaseCVE-2026-94057
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CVE-2026-94057
Published:September 19, 2026
Updated:September 22, 2026
Exim before 4.100.1 allows SMTP smuggling in which the received message does not match any sent message, and instead depends on crafted data sent after a rejection during DATA processing.
Affected Packages
https://code.exim.org/exim/exim.git (SCM_GIT):
Affected version(s) >=exim-4.92 <exim-4.100.1
Fix Suggestion:
Update to version exim-4.100.1
Related Resources (2)
https://lists.exim.org/lurker/message/20260918.121220.0f87338e.en.html
https://nvd.nist.gov/vuln/detail/CVE-2026-94057
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CVSS v4
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
4
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of CRLF Sequences ('CRLF Injection')
CWE-93
EPSS
Base Score:
0.16