Is CVE-2026-2743 actively exploited?

No active exploitation of CVE-2026-2743 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-2743 be exploited remotely?

Yes. CVE-2026-2743 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-2743?

CVE-2026-2743 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2026-2743

CRITICAL

CVE-2026-2743

CWE-22Published: March 5, 2026· Updated: Mar 9, 2026

9.8

CVSS v3.1

EPSS:0.49%probability of exploitation in 30 daysPercentile:65.2th

Official Description

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

NVD Source

Technical Analysis

CVE-2026-2743 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.