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TI-2026-32137 Aliases CVE-2026-44126GHSA-69wg-m4qc-c3qc

Insecure deserialization in SEPPmail Secure Email Gateway

Priority MEDIUM 42CWE-502Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-502.

Summary

SEPPmail Secure Email Gateway before version 15.0.4 insecurely deserializes untrusted data, which can be reached from the new GINA UI and may allow unauthenticated remote attackers to execute code via a crafted serialized object.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00472 41st percentileScored 2026-11-07
Fix Fixed Secure Email Gateway (SEPPmail AG): 15.0.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SEPPmailSecure Email Gatewaybefore 15.0.415.0.4Patch availableCNA
  • Secure Email Gateway VendorSEPPmail Affected before 15.0.4 Fixed in 15.0.4 Patch available CNA

Remediation

  • Fix · CNA Secure Email Gateway (SEPPmail AG) Fixed in 15.0.4

Fixed in the same release

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

  • Release ·

    SEPPmail Secure Email Gateway 15.0.4

    5 records Highest priority Priority MEDIUM 4 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-32138 Local File Inclusion (LFI) and Arbitrary File DeletionPriority MEDIUM 60
    • TI-2026-06922 Exposure of Sensitive Information to an Unauthorized ActorPriority MEDIUM 53
    • TI-2026-32136 Missing Authorization in GINAv2Priority MEDIUM 48
    Show all 5 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-44126
  2. 2026-10-03 Alias added: GHSA-69wg-m4qc-c3qc
  3. 2026-10-25 EPSS moved to the below the 50th percentile

References

Other 2

  • 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