CVE-2026-27443

Summary

SEPPmail Secure Email Gateway before version 15.0.1 does not properly sanitize the headers from S/MIME protected MIME entities, allowing an attacker to control trusted headers.

Affected Software

VendorProductVersion RangeStatus
SEPPmailSecure Email Gateway0 < 15.0.1affected

Weaknesses

  • CWE-20: CWE-20 Improper Input Validation

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References