CVE-2026-114425

Critical

Description

SEPPmail Secure Email Gateway before 15.1.1 trusts a file path supplied in externally provided Large File Transfer attachment metadata. An unauthenticated remote sender can cause the mail-processing worker to disclose, move, or delete an accessible regular file when LFT is enabled and the message reaches an affected secure-mail processing path. The validated workers ran as root.

SeverityCritical
CVSS9.2
Exploit probability—
ProductSecure Email Gateway
PublishedNov 4, 2026
First seenNov 4, 2026

How to fix

Update
  • SEPPmail Secure Email Gateway15.1.1 or later

Affected products

ProductAffected versionsFixed in
SEPPmail Secure Email GatewayNo range specified15.1.1

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

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