CVE-2026-2747

High

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.

SeverityHigh

CVSS7.5

Exploit probability—

ProductSeppmail

PublishedMar 4, 2026

First seenMar 4, 2026

Weakness typeCWE-200Sensitive information exposure

How to fix

Update

seppmail seppmail15.0.1 or later

Vendor advisories

downloads.seppmail.com/extrelnotes/150/ERN15.0.html#seppmail-vulnerability-disclosure

Affected products

Product	Affected versions	Fixed in
seppmail seppmail	v < 15.0.1	15.0.1

Check your version

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