VULNERABILITY INTELLIGENCE

CVE-2026-29140

CVSS score5.3 MEDIUM
EPSS probability0.12%
CISA KEVNot currently listed
Published2026-04-02
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Description

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.

Weakness classification

  • vulnerability@ncsc.ch: CWE-295

Primary references