🛡️ CVE-2026-27441 — seppmail

🔴 CVSS 9.8 — Critical ✅ No Known Exploit CWE-78 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

SEPPmail Secure Email Gateway before version 15.0.1 insufficiently neutralizes the PDF encryption password, allowing OS command execution.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2026-27441 is classified as CWE-78: OS Command Injection. Untrusted input reaches a shell command without neutralisation, so an attacker can run arbitrary operating system commands.

Affected software

CVE-2026-27441 is recorded against 1 package.

  • seppmail (fixed in 15.0.1)

Timeline and source

Published on 4 March 2026 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

downloads.seppmail.com

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-78
Public Exploit ✅ No
Source NVD
Published 2026-03-04
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
seppmail 15.0.1

Similar Threats

Exploit Protection

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CVE-2026-27441 carries CVSS 9.8 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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