CVE-2026-2743

UNKNOWN 0.0

SEPPmail User Web Interface Arbitrary File Write to RCE

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

Arbitrary File Write via Path Traversal upload to Remote Code Execution in SeppMail User Web Interface. The affected feature is the large file transfer (LFT). This issue affects SeppMail: 15.0.2.1 and before

CWE	CWE-22 CWE-434
Vendor	seppmail
Product	seppmail
Published	Mar 5, 2026
Last Updated	Mar 5, 2026

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Affected Versions

SeppMail / SeppMail

unknown ≤ 15.0.2.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

downloads.seppmail.com: https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html labs.infoguard.ch: https://labs.infoguard.ch/advisories/seppmail

Credits

Manuel Feifel and Dario Weiss of InfoGuard Labs