Vulnerability intelligence

CVE-2026-2743

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 Score

Critical

EPSS — Exploit Probability

0.8%

Riskier than 55% of all CVEs · checked 2026-09-05

Exploitation

Not in CISA KEV

KEV does not include every exploited vulnerability

Remediation

Patch available

Vendor fix published

NVD entry Vendor patch PoC / advisory

1 article across 1 outlet · first covered May 19, 2026 · latest May 19, 2026

Coverage timeline

SEPPMail Secure E-Mail Gateway Vulnerabilities Enable RCE and Mail Traffic Access
thehackernews.com · May 19, 2026