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        "cveId": "CVE-2026-44126",
        "assignerOrgId": "455daabc-a392-441d-aa46-37d35189897c",
        "state": "PUBLISHED",
        "assignerShortName": "NCSC.ch",
        "dateReserved": "2026-05-05T12:56:43.131Z",
        "datePublished": "2026-05-08T13:15:52.032Z",
        "dateUpdated": "2026-05-18T16:16:37.793Z"
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            "title": "Insecure deserialization",
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                    "descriptions": [
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                            "lang": "en",
                            "cweId": "CWE-502",
                            "description": "CWE-502 Deserialization of untrusted data",
                            "type": "CWE"
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            "impacts": [
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                    "capecId": "CAPEC-586",
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                            "lang": "en",
                            "value": "CAPEC-586 Object Injection"
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                    "vendor": "SEPPmail AG",
                    "product": "Secure Email Gateway",
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                            "version": "0",
                            "lessThan": "15.0.4",
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                    "lang": "en",
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            "references": [
                {
                    "url": "https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html#security"
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                {
                    "url": "https://labs.infoguard.ch/posts/seppmail_secure_e-mail_gateway_rce_vulnerabilities_cve-2026-2743_cve-2026-7864_cve-2026-44127_cve-2026-44128/"
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                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "HIGH",
                        "subIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "HIGH",
                        "subAvailabilityImpact": "NONE",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
                        "providerUrgency": "NOT_DEFINED",
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                        "baseSeverity": "CRITICAL",
                        "baseScore": 9.2,
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            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Dario Weiss of InfoGuard Labs",
                    "type": "finder"
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            "source": {
                "discovery": "UNKNOWN"
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                                "timestamp": "2026-05-08T14:15:50.621385Z",
                                "id": "CVE-2026-44126",
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                "title": "CISA ADP Vulnrichment",
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