CVE-2026-2747

PGP Mixed Plaintext and Encrypted Content

State: Published
Severity: 6.9 Medium
Published: Mar 4, 2026
Updated: Mar 4, 2026
Reserved: Feb 19, 2026

Description

SEPPmail Secure Email Gateway before version 15.0.1 decrypts inline PGP messages without isolating them from surrounding unencrypted content, allowing exposure of sensitive information to an unauthorized actor.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N	NCSC.ch

Weaknesses

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Affected Products

Product	Versions
Secure Email GatewaySEPPmail	before 15.0.1Affected

References

https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html#seppmail-vulnerability-disclosurerelease-notes

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