CVE-2026-27445

SEPPmail Secure Email Gateway before version 15.0.1 does not properly verify that a PGP signature was generated by the expected key, allowing signature spoofing.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html#seppmail-vulnerability-disclosure	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:seppmail:seppmail:*:*:*:*:*:*:*:*

History

17 Jun 2026, 10:27

Type	Values Removed	Values Added
Summary		(es) SEPPmail Secure Email Gateway anterior a la versión 15.0.1 no verifica correctamente que una firma PGP fue generada por la clave esperada, permitiendo la suplantación de firma.

05 Mar 2026, 15:28

Type	Values Removed	Values Added
References	~~() https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html#seppmail-vulnerability-disclosure -~~	() https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html#seppmail-vulnerability-disclosure - Vendor Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.3
First Time		Seppmail Seppmail seppmail
CPE		cpe:2.3:a:seppmail:seppmail::::::::

04 Mar 2026, 09:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-04 09:15

Updated : 2026-06-17 10:27

NVD link : CVE-2026-27445

Mitre link : CVE-2026-27445

CVE.ORG link : CVE-2026-27445

JSON object : View

Products Affected

seppmail

seppmail

CWE

CWE-347

Improper Verification of Cryptographic Signature

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