PT-2026-22895 · Seppmail · Seppmail Secure Email Gateway

Andris Suter-Dörig + 2 · Publicado 2026-03-04 · Atualizado 2026-03-04 · CVE-2026-2748

Positive Technologies (AI Summary)

CVSS v4.0

7.8

Alta

Vetor base

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:H/SA:N

Name of the Vulnerable Software and Affected Versions SEPPmail Secure Email Gateway versions prior to 15.0.1

Description The SEPPmail Secure Email Gateway does not properly validate S/MIME certificates for email addresses that contain whitespaces, which can lead to signature spoofing.

Recommendations Update to version 15.0.1 or later.

Correção

Improper Certificate Validation

Enumeração de Fraquezas

CWE-295

Identificadores relacionados

CVE-2026-2748

Produtos afetados

Seppmail Secure Email Gateway

Referências · 7

• https://nvd.nist.gov/vuln/detail/CVE-2026-2748 · Nota de Segurança
• https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html#seppmail-vulnerability-disclosure · Aviso do Fabricante
• https://twitter.com/CVEarity/status/2029237724323168708 · Publicação no Twitter
• https://t.me/CVEtracker/46302 · Publicação no Telegram
• https://osv.dev/vulnerability/CVE-2026-2748 · Aviso do Fabricante
• https://twitter.com/infoflowcloud/status/2029127417868976372 · Publicação no Twitter
• https://twitter.com/CVEnew/status/2029125968091025512 · Publicação no Twitter