CVE-2026-84832 (GCVE-0-2026-84832)

Vulnerability from cvelistv5 – Published: 2026-09-03 08:45 – Updated: 2026-10-08 11:16
VLAI
Title
Unsafe deserialization in the REST interface
Summary
SEPPmail Secure Email Gateway before 15.0.6 deserializes attacker-controlled data in a privileged REST import workflow without adequate validation. An attacker with a privileged API token can execute arbitrary commands with "nobody" privileges.
Severity
8.6 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 12:32 UTC
CWE
  • CWE-502 - Deserialization of untrusted data
  • CWE-78 - Improper neutralization of special elements used in an OS command ('OS command injection')
Assigner
NCSC.ch CNA under the mitre root
CNA scorecard B 80/100 over 76 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
SEPPmail AG SEPPmail Secure Email Gateway (SEG) Affected: 0 , < 15.0.6 (custom)
guessed Create a notification for this product.
Credits
Oualid Lkhaouni (Emposo GmbH)
Show details on NVD website
To clipboard 

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