CVE-2026-27445CWE-347

PGP Signature Reflection

Medium · published March 4, 2026

CVSS v4.0
6.9
EPSS
0%
Percentile
10.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
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
EPSS
0.00207 · 10.3th percentile
Weakness
CWE-347 · Improper Verification of Cryptographic Signature
Published
2026-03-04T08:47Z
EPSS history
Timeline
  • 04 MAR 08:47Z
    PGP Signature Reflection
    cvelistv5