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TI-2026-84991 Aliases CVE-2026-114425GHSA-83v7-h64g-wr4c

Forged LFT metadata permits arbitrary file read and deletion in SEPPmail SEG

Priority MEDIUM 40CWE-73Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

SEPPmail Secure Email Gateway before 15.1.1 trusts a file path supplied in externally provided Large File Transfer attachment metadata. An unauthenticated remote sender can make the mail-processing worker disclose, move, or delete an accessible regular file when LFT is enabled and the message reaches an affected secure-mail processing path. The validated workers ran as root.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Description from the CNA

SEPPmail Secure Email Gateway before 15.1.1 trusts a file path supplied in externally provided Large File Transfer attachment metadata. An unauthenticated remote sender can cause the mail-processing worker to disclose, move, or delete an accessible regular file when LFT is enabled and the message reaches an affected secure-mail processing path. The validated workers ran as root.

Why it matters now

EPSS 0.00329 26th percentileScored 2026-11-07
Fix Fixed SEPPmail Secure Email Gateway (SEG) (SEPPmail AG): 15.1.1

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
SEPPmailSEPPmail Secure Email Gateway (SEG)before 15.1.115.1.1Patch availableCNA
  • SEPPmail Secure Email Gateway (SEG) VendorSEPPmail Affected before 15.1.1 Fixed in 15.1.1 Patch available CNA

Remediation

Update SEPPmail Secure Email Gateway (SEG) to version 15.1.1 or later.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

  • Fix · CNA SEPPmail Secure Email Gateway (SEG) (SEPPmail AG) Fixed in 15.1.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    SEPPmail Secure Email Gateway (SEG) 15.1.1

    5 records Highest priority Priority MEDIUM 1 MEDIUM, 4 LOW

    Other records, highest priority first

    • TI-2026-84990 Code execution through double evaluation in SEPPmail address replacement rulesPriority LOW 39
    • TI-2026-84994 Pre-authentication upload parsing enables resource exhaustionPriority LOW 38
    • TI-2026-84993 Empty initial password permits GINA account takeover in SEPPmail GatewayPriority LOW 36
    Show all 5 records →

Timeline

  1. 2026-11-04 Threatist record created from CVE-2026-114425
  2. 2026-11-04 Alias added: GHSA-83v7-h64g-wr4c

References

Other 1

  • TI-2026-02349 SEPPmail User Web Interface Arbitrary File Write to RCE CVSS 4.0CRITICAL 10.0
  • TI-2026-32138 Local File Inclusion (LFI) and Arbitrary File Deletion CVSS 4.0HIGH 8.8
  • TI-2021-11768 SEPPMail's web frontend, user input is not embedded correctly in the web page and… CVSS 3.1MEDIUM 6.1
  • TI-2021-11767 The SEPPmail solution is vulnerable to a Cross-Site Scripting vulnerability (XSS)… CVSS 3.1MEDIUM 6.1
  • TI-2026-06922 Exposure of Sensitive Information to an Unauthorized Actor CVSS 4.0MEDIUM 6.9
  • TI-2026-32139 Unauthenticated remote code execution in SEPPmail Secure Email Gateway CVSS 4.0CRITICAL 9.3
See all 41 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences