MDaemon Mail Server 23.5.2 validates SPF, DKIM, and DMARC using the email enclosed in angle brackets (<>) in the From: header of SMTP DATA. An attacker can craft a From: header with multiple invisible Unicode thin spaces to display a spoofed sender while passing validation, allowing email spoofing even when anti-spoofing protections are in place. NOTE: this is disputed by the Supplier because UI spoofing occurs in a client, not in a server such as MDaemon's product or any other server implementation. Also, if a client without its own spoofing protection must be used, the Header Screening feature in MDaemon's product can be employed to mitigate the client-side vulnerability.
References
Configurations
No configuration.
History
13 Nov 2025, 14:15
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | (en) MDaemon Mail Server 23.5.2 validates SPF, DKIM, and DMARC using the email enclosed in angle brackets (<>) in the From: header of SMTP DATA. An attacker can craft a From: header with multiple invisible Unicode thin spaces to display a spoofed sender while passing validation, allowing email spoofing even when anti-spoofing protections are in place. NOTE: this is disputed by the Supplier because UI spoofing occurs in a client, not in a server such as MDaemon's product or any other server implementation. Also, if a client without its own spoofing protection must be used, the Header Screening feature in MDaemon's product can be employed to mitigate the client-side vulnerability. |
05 Nov 2025, 16:15
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-20 CWE-116 |
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| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.1 |
05 Nov 2025, 15:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-11-05 15:15
Updated : 2025-11-13 14:15
NVD link : CVE-2025-61084
Mitre link : CVE-2025-61084
CVE.ORG link : CVE-2025-61084
JSON object : View
Products Affected
No product.