Description
SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to bypass subject sanitization and forge tags such as [signed OK].
Published: 2026-04-02
Score: 7.7 High
EPSS: < 1% Very Low
KEV: No
Impact: Subject Tag Forgery via Sanitization Bypass
Action: Immediate 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, 16 Apr 2026 19:15:00 +0000

Type Values Removed Values Added
First Time appeared Seppmail secure Email Gateway
CPEs cpe:2.3:a:seppmail:secure_email_gateway:*:*:*:*:*:*:*:*
Vendors & Products Seppmail secure Email Gateway
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'}


Thu, 02 Apr 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 02 Apr 2026 09:00:00 +0000

Type Values Removed Values Added
Description SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to bypass subject sanitization and forge tags such as [signed OK].
Title Bounded Subject Tag Sanitization
First Time appeared Seppmail
Seppmail seppmail Secure Email Gateway
Weaknesses CWE-20
CPEs cpe:2.3:a:seppmail:seppmail_secure_email_gateway:*:*:*:*:*:*:*:*
Vendors & Products Seppmail
Seppmail seppmail Secure Email Gateway
References
Metrics cvssV4_0

{'score': 7.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N'}


Subscriptions

Seppmail Secure Email Gateway Seppmail Secure Email Gateway
cve-icon MITRE

Status: PUBLISHED

Assigner: NCSC.ch

Published:

Updated: 2026-04-02T14:40:50.107Z

Reserved: 2026-03-04T09:08:07.342Z

Link: CVE-2026-29141

cve-icon Vulnrichment

Updated: 2026-04-02T14:40:39.987Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-02T09:16:22.793

Modified: 2026-04-16T19:00:20.973

Link: CVE-2026-29141

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-02T20:22:06Z

Weaknesses