{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-2746", "assignerOrgId": "455daabc-a392-441d-aa46-37d35189897c", "state": "PUBLISHED", "assignerShortName": "NCSC.ch", "dateReserved": "2026-02-19T13:56:30.878Z", "datePublished": "2026-03-04T08:44:31.726Z", "dateUpdated": "2026-03-04T21:26:24.749Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Secure Email Gateway", "vendor": "SEPPmail", "versions": [{"lessThan": "15.0.1", "status": "affected", "version": "0", "versionType": "custom"}]}], "cpeApplicability": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:seppmail:seppmail_secure_email_gateway:*:*:*:*:*:*:*:*", "versionEndExcluding": "15.0.1", "versionStartIncluding": "0", "vulnerable": true}], "negate": false, "operator": "OR"}], "operator": "OR"}], "credits": [{"lang": "en", "type": "finder", "value": "Andris Suter-D\u00f6rig"}, {"lang": "en", "type": "coordinator", "value": "Matteo Scarlata"}, {"lang": "en", "type": "coordinator", "value": "Kenny Paterson"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "SEPPmail Secure Email Gateway before version 15.0.1 does not properly communicate PGP signature verification results, leaving users unable to detect forged emails."}], "value": "SEPPmail Secure Email Gateway before version 15.0.1 does not properly communicate PGP signature verification results, leaving users unable to detect forged emails."}], "impacts": [{"capecId": "CAPEC-194", "descriptions": [{"lang": "en", "value": "CAPEC-194 Fake the Source of Data"}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 6.9, "baseSeverity": "MEDIUM", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "LOW", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-347", "description": "CWE-347 Improper Verification of Cryptographic Signature", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "455daabc-a392-441d-aa46-37d35189897c", "shortName": "NCSC.ch", "dateUpdated": "2026-03-04T08:44:31.726Z"}, "references": [{"tags": ["release-notes"], "url": "https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html#seppmail-vulnerability-disclosure"}], "source": {"discovery": "EXTERNAL"}, "timeline": [{"lang": "en", "time": "2025-10-31T14:22:00.000Z", "value": "Vulnerability disclosed to SEPPmail"}, {"lang": "en", "time": "2026-01-06T00:00:00.000Z", "value": "SEPPmail version 15.0.1 released"}], "title": "Missing PGP Signature Tag", "x_generator": {"engine": "Vulnogram 0.5.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-03-04T21:26:12.416325Z", "id": "CVE-2026-2746", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-04T21:26:24.749Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-2746", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-03-04T21:26:12.416325Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-04T21:26:21.203Z"}}], "cna": {"title": "Missing PGP Signature Tag", "source": {"discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "finder", "value": "Andris Suter-D\u00f6rig"}, {"lang": "en", "type": "coordinator", "value": "Matteo Scarlata"}, {"lang": "en", "type": "coordinator", "value": "Kenny Paterson"}], "impacts": [{"capecId": "CAPEC-194", "descriptions": [{"lang": "en", "value": "CAPEC-194 Fake the Source of Data"}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 6.9, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "LOW", "vulnIntegrityImpact": "LOW", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "SEPPmail", "product": "Secure Email Gateway", "versions": [{"status": "affected", "version": "0", "lessThan": "15.0.1", "versionType": "custom"}], "defaultStatus": "unaffected"}], "timeline": [{"lang": "en", "time": "2025-10-31T14:22:00.000Z", "value": "Vulnerability disclosed to SEPPmail"}, {"lang": "en", "time": "2026-01-06T00:00:00.000Z", "value": "SEPPmail version 15.0.1 released"}], "references": [{"url": "https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html#seppmail-vulnerability-disclosure", "tags": ["release-notes"]}], "x_generator": {"engine": "Vulnogram 0.5.0"}, "descriptions": [{"lang": "en", "value": "SEPPmail Secure Email Gateway before version 15.0.1 does not properly communicate PGP signature verification results, leaving users unable to detect forged emails.", "supportingMedia": [{"type": "text/html", "value": "SEPPmail Secure Email Gateway before version 15.0.1 does not properly communicate PGP signature verification results, leaving users unable to detect forged emails.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-347", "description": "CWE-347 Improper Verification of Cryptographic Signature"}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:seppmail:seppmail_secure_email_gateway:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "15.0.1", "versionStartIncluding": "0"}], "operator": "OR"}], "operator": "OR"}], "providerMetadata": {"orgId": "455daabc-a392-441d-aa46-37d35189897c", "shortName": "NCSC.ch", "dateUpdated": "2026-03-04T08:44:31.726Z"}}}, "cveMetadata": {"cveId": "CVE-2026-2746", "state": "PUBLISHED", "dateUpdated": "2026-03-04T21:26:24.749Z", "dateReserved": "2026-02-19T13:56:30.878Z", "assignerOrgId": "455daabc-a392-441d-aa46-37d35189897c", "datePublished": "2026-03-04T08:44:31.726Z", "assignerShortName": "NCSC.ch"}, "dataVersion": "5.2"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:seppmail:seppmail:*:*:*:*:*:*:*:*", "matchCriteriaId": "4B07D7CB-23E6-479C-8727-06287E92D62F", "versionEndExcluding": "15.0.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "SEPPmail Secure Email Gateway before version 15.0.1 does not properly communicate PGP signature verification results, leaving users unable to detect forged emails."}], "id": "CVE-2026-2746", "lastModified": "2026-03-05T15:25:57.563", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.9, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "LOW", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/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", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "vulnerability@ncsc.ch", "type": "Secondary"}]}, "published": "2026-03-04T09:15:57.960", "references": [{"source": "vulnerability@ncsc.ch", "tags": ["Vendor Advisory"], "url": "https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html#seppmail-vulnerability-disclosure"}], "sourceIdentifier": "vulnerability@ncsc.ch", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-347"}], "source": "vulnerability@ncsc.ch", "type": "Secondary"}]}

{}