CVE-2026-27445: PGP Signature Reflection
Published Mar 4, 2026
·Updated
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.
Affected Software
2 affected components
SEPPmail Secure Email Gateway<15.0.1
SEPPmail SEPPmail<15.0.1
Event History
Mar 4, 2026
CVE Published
via MITRE·08:47 AM
Data Sourced
via MITRE·08:47 AM
DescriptionWeakness
Data Sourced
via NVD·09:15 AM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-27445?
CVE-2026-27445 is considered a high-severity vulnerability due to the potential for signature spoofing.
2
How do I fix CVE-2026-27445?
To fix CVE-2026-27445, upgrade your SEPPmail Secure Email Gateway to version 15.0.1 or later.
3
What kind of vulnerability is CVE-2026-27445?
CVE-2026-27445 is a vulnerability related to improper verification of PGP signatures, leading to potential signature spoofing.
4
Which versions of SEPPmail are affected by CVE-2026-27445?
Versions of SEPPmail Secure Email Gateway before 15.0.1 are affected by CVE-2026-27445.
5
What impact does CVE-2026-27445 have on email security?
CVE-2026-27445 can undermine email authenticity and integrity, putting users at risk of accepting fraudulent signatures.