CVEvulnerability

CVE-2026-29143

7.8 HIGH Published 2026-04-02 Modified 2026-10-26 Official page ↗
Status
Analyzed
Published
2026-04-02
Last modified
2026-10-26
Assigner
[email protected]
CVSS 4.0 ([email protected])
7.8 HIGH — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1 ([email protected])
9.1 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weaknesses
CWE-20

Description

SEPPmail Secure Email Gateway before version 15.0.3 does not properly authenticate the inner message of S/MIME-encrypted MIME entities, allowing an attacker to control trusted headers.

Affected configurations

• seppmail secure email gateway (< 15.0.3)

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References