Description
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.
Published: 2026-03-04
Score: 6.9 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Signature spoofing causing undetected forged signatures
Action: Apply patch
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 05 Mar 2026 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Seppmail seppmail
CPEs cpe:2.3:a:seppmail:seppmail:*:*:*:*:*:*:*:*
Vendors & Products Seppmail seppmail
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'}


Wed, 04 Mar 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 04 Mar 2026 09:15:00 +0000

Type Values Removed Values Added
Description 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.
Title PGP Signature Reflection
First Time appeared Seppmail
Seppmail seppmail Secure Email Gateway
Weaknesses CWE-347
CPEs cpe:2.3:a:seppmail:seppmail_secure_email_gateway:*:*:*:*:*:*:*:*
Vendors & Products Seppmail
Seppmail seppmail Secure Email Gateway
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:H/SA:N'}


Subscriptions

Seppmail Seppmail Seppmail Secure Email Gateway
cve-icon MITRE

Status: PUBLISHED

Assigner: NCSC.ch

Published:

Updated: 2026-03-04T19:26:51.317Z

Reserved: 2026-02-19T13:56:28.869Z

Link: CVE-2026-27445

cve-icon Vulnrichment

Updated: 2026-03-04T19:26:46.298Z

cve-icon NVD

Status : Analyzed

Published: 2026-03-04T09:15:56.660

Modified: 2026-03-05T15:28:21.530

Link: CVE-2026-27445

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-17T13:15:19Z

Weaknesses