CVE-2026-2743
published 2026-03-05CVE-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)…
PriorityP267critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
0.84%
53.3th percentile
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
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| seppmail | seppmail | <= 15.0.2.1 | — |
| seppmail | seppmail | unknown – 15.0.2.1 | — |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv4.010.0CRITICALCVSS: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
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blogs_hackernews·2026-05-25
CVE-2026-46333 ⚡ Weekly Recap: Linux Flaws, Defender 0-Days, Router Botnets, and Supply Chain Chaos
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## ⚡ Weekly Recap: Linux Flaws, Defender 0-Days, Router Botnets, and Supply Chain Chaos
Monday recap. Same mess, new week.
A sketchy dev tool got people pwned, old bugs came back from the dead, and security products somehow needed protecting from themselves. A bunch of companies spent the week checking old boxes and forgotten servers they should've patched years ago. Good times.
Phishing crews are getting smarter too - less obvious scam junk, more targeted stuff that actually looks real. Meanwhile, botnets are grabbing anything exposed to the internet like it's free candy. The Internet's still a dumpster fire.
Let’s get into
Hackernews
SEPPMail Secure E-Mail Gateway Vulnerabilities Enable RCE and Mail Traffic Access
blogs_hackernews·2026-05-19·CVSS 10.0
CVE-2026-2743 [CRITICAL] SEPPMail Secure E-Mail Gateway Vulnerabilities Enable RCE and Mail Traffic Access
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## SEPPMail Secure E-Mail Gateway Vulnerabilities Enable RCE and Mail Traffic Access
Critical security vulnerabilities have been disclosed in SEPPMail Secure E-Mail Gateway , an enterprise-grade email security solution, that could be exploited to achieve remote code execution and enable an attacker to read arbitrary mails from the virtual appliance.
"These vulnerabilities could have been exploited to read all mail traffic or as an entry vector into the internal network," InfoGuard Labs researchers Dario Weiss, Manuel Feifel, and Olivier Becker said in a Monday report.
The list of identified flaws is as follows -
CVE-2026-2743
https://downloads.seppmail.com/extrelnotes/150/ERN15.0.htmlhttps://labs.infoguard.ch/posts/seppmail_secure_e-mail_gateway_rce_vulnerabilities_cve-2026-2743_cve-2026-7864_cve-2026-44127_cve-2026-44128/https://labs.infoguard.ch/posts/seppmail_secure_e-mail_gateway_rce_vulnerabilities_cve-2026-2743_cve-2026-7864_cve-2026-44127_cve-2026-44128/
2026-03-05
Published