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.
Loading...
Loading...
Score 5.3 from GitHub Security Advisory (severity: HIGH) published 2026-04-02. NVD baseline CVSS 5.3; sources differ by 0.0.
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.
April 2, 2026
April 16, 2026
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-29140
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.