Thunderbird parses addresses in a way that can allow sender spoofing in case the server allows an invalid From address to be used. For example, if the From header contains an (invalid) value "Spoofed Name ", Thunderbird treats spoofed@example.com as the actual address. This vulnerability was fixed in Thunderbird 128.10.1 and Thunderbird 138.0.1.
References
| Link | Resource |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1950629 | Permissions Required |
| https://www.mozilla.org/security/advisories/mfsa2025-34/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-35/ | Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2025/05/msg00022.html |
Configurations
Configuration 1 (hide)
|
History
13 Apr 2026, 15:16
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | (en) Thunderbird parses addresses in a way that can allow sender spoofing in case the server allows an invalid From address to be used. For example, if the From header contains an (invalid) value "Spoofed Name ", Thunderbird treats spoofed@example.com as the actual address. This vulnerability was fixed in Thunderbird 128.10.1 and Thunderbird 138.0.1. |
03 Nov 2025, 20:18
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
05 Jun 2025, 14:27
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | (es) Thunderbird analiza las direcciones de forma que puede permite la suplantación del remitente si el servidor permite el uso de una dirección de remitente no válida. Por ejemplo, si el encabezado "De" contiene el valor (inválido) "Nombre falsificado", Thunderbird trata spoofed@example.com como la dirección real. Esta vulnerabilidad afecta a Thunderbird < 128.10.1 y Thunderbird < 138.0.1. | |
| References | () https://bugzilla.mozilla.org/show_bug.cgi?id=1950629 - Permissions Required | |
| References | () https://www.mozilla.org/security/advisories/mfsa2025-34/ - Vendor Advisory | |
| References | () https://www.mozilla.org/security/advisories/mfsa2025-35/ - Vendor Advisory | |
| CPE | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* | |
| First Time |
Mozilla
Mozilla thunderbird |
15 May 2025, 15:16
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-290 | |
| Summary |
|
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.5 |
14 May 2025, 17:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-05-14 17:15
Updated : 2026-04-13 15:16
NVD link : CVE-2025-3875
Mitre link : CVE-2025-3875
CVE.ORG link : CVE-2025-3875
JSON object : View
Products Affected
mozilla
- thunderbird
CWE
CWE-290
Authentication Bypass by Spoofing