CVE-2026-29140

MEDIUM

5.3

Descripcion

SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to cause attacker-controlled certificates to be used for future encryption to a victim by adding the certificates to S/MIME signatures.

Detalles CVE

Puntuacion CVSS v3.15.3

SeveridadMEDIUM

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado4/2/2026

Ultima modificacion4/16/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

seppmail:secure_email_gateway

Debilidades (CWE)

CWE-295

Referencias

https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html#seppmail-vulnerability-disclosure-1503(vulnerability@ncsc.ch)

Correlaciones IOC

Sin correlaciones registradas

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