Insecure deserialization_CVE-2026-44126

{
    "lastseen": "",
    "description": "SEPPmail Secure Email Gateway before version 15.0.4 insecurely deserializes untrusted data, which can be reached from the new GINA UI and may allow unauthenticated remote attackers to execute code via a crafted serialized object.",
    "published": "2026-05-08T13:15:52.032Z",
    "modified": "2026-05-08T13:15:52.032Z",
    "type": "cve",
    "title": "Insecure deserialization",
    "source": "NCSC.ch",
    "references": "https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html#security",
    "id": "CVE-2026-44126",
    "bulletinFamily": "",
    "cwe": [
        "CWE-502"
    ],
    "cvelist": null,
    "sourceData": "SEPPmail AG Secure Email Gateway 0",
    "sourceHref": "",
    "cvss": {
        "score": 9.2,
        "severity": "CRITICAL",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Secure Email Gateway",
    "version": "0",
    "vendor": "SEPPmail AG",
    "ai_description": "Insecure deserialization vulnerability in SEPPmail Secure Email Gateway, allowing unauthenticated remote attackers to execute code via a crafted serialized object.",
    "ai_severity": "Critical",
    "ai_vendor": "SEPPmail AG",
    "ai_product": "Secure Email Gateway",
    "ai_version": "before 15.0.4",
    "ai_score": 9.2
}