NetSight
medium5.3

CVE-2026-29140

SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to cause attacker-controlled certificates to be used for future encryption to a victim b…

Impact

SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to cause attacker-controlled certificates to be used for future encryption to a victim by adding the certificates to S/MIME signatures.

Affected products

VendorProductAffected versions
SeppmailSecure Email Gateway
before 15.0.3

Weakness classification

References