CVE-2026-2743 describes a critical arbitrary file write vulnerability in the SeppMail User Web Interface, specifically within the large file transfer (LFT) feature, affecting versions 15.0.2.1 and earlier. This path traversal flaw allows for unauthenticated remote code execution, evidenced by its CVSSv4 score of 10.0. While the vulnerability is critical and easily exploitable over the network with no user interaction, there is currently no public exploit code available, nor any indication of active exploitation or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 15.0.2.1CPE match | cpe:2.3:a:seppmail:seppmail:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:X/RE:X/U:X
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.