EUVD-2026-18146
GHSA-g982-ffmg-jq3g
5.3
CVSS 4.0
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CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/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
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X
Lifecycle Timeline
3
EUVD ID Assigned
Apr 02, 2026 - 08:45 euvd
EUVD-2026-18146
Analysis Generated
Apr 02, 2026 - 08:45 vuln.today
CVE Published
Apr 02, 2026 - 08:26 nvd
MEDIUM 5.3
Description
SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to upload PGP keys with UIDs that do not match their email address.
Analysis
SEPPmail Secure Email Gateway before version 15.0.3 allows attackers to upload PGP keys with mismatched User IDs and email addresses, enabling spoofing and potential information disclosure by circumventing email authentication controls. The vulnerability affects all versions prior to 15.0.3 and was reported by NCSC.ch. …
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Priority Score
27
Low
Medium
High
Critical
KEV: 0
EPSS: +0.1
CVSS: +26
POC: 0
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External POC / Exploit Code
Leaving vuln.today
Destination URL
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