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CVE-2026-2743criticalCWE-22CWE-434

SEPPmail User Web Interface Arbitrary File Write to RCE

28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 10epss 0.8%
exploitation probability
0.8%top 46% of all CVEs
observed exploitation
nono source reports it
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
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/AU:Y
Affected products
SeppMail · SeppMail