CVE-2026-27445 MEDIUM

CVE-2026-27445: PGP Signature Reflection

Vendor Seppmail
Product Secure Email Gateway
Weakness CWE-347
Published March 4, 2026
Last update March 4, 2026
View on NVD All CVEs

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:H/SA:N

What the vulnerability does

01Description

SEPPmail Secure Email Gateway before version 15.0.1 does not properly verify that a PGP signature was generated by the expected key, allowing signature spoofing.

Key dates

02Disclosure timeline

March 4, 2026 CVE published
March 4, 2026 Record updated