{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-39906",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-04-07T20:57:06.209Z",
        "datePublished": "2026-04-14T21:21:21.739Z",
        "dateUpdated": "2026-05-14T16:06:18.439Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
                "shortName": "VulnCheck",
                "dateUpdated": "2026-05-08T14:09:12.494Z"
            },
            "title": "Unisys WebPerfect Image Suite 3.0 NTLMv2 Hash Leakage via .NET Remoting",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Unisys WebPerfect Image Suite versions 3.0.3960.22810 and 3.0.3960.22604 expose a deprecated .NET Remoting TCP channel that allows remote unauthenticated attackers to leak NTLMv2 machine-account hashes by supplying a Windows UNC path as a target file argument through object-unmarshalling techniques. Attackers can capture the leaked NTLMv2 hash and relay it to other hosts to achieve privilege escalation or lateral movement depending on network configuration and patch level."
                }
            ],
            "datePublic": "2026-04-15T00:00:00.000Z",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-441",
                            "description": "Unintended Proxy or Intermediary ('Confused Deputy')",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "Unisys",
                    "product": "WebPerfect Image Suite",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "3.0.3960.22810",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "3.0.3960.22604",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unknown"
                }
            ],
            "metrics": [
                {
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ],
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "LOW",
                        "subConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "NONE",
                        "subIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
                        "providerUrgency": "NOT_DEFINED",
                        "version": "4.0",
                        "baseSeverity": "HIGH",
                        "baseScore": 7,
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:N"
                    }
                }
            ],
            "references": [
                {
                    "url": "https://gist.github.com/VAMorales/be3e4ed472c51794493c1256cce16129",
                    "tags": [
                        "technical-description",
                        "exploit"
                    ]
                },
                {
                    "url": "https://www.unisys.com/solutions/cai/applications/",
                    "tags": [
                        "product"
                    ]
                },
                {
                    "url": "https://www.vulncheck.com/advisories/unisys-webperfect-image-suite-ntlmv2-hash-leakage-via-net-remoting",
                    "tags": [
                        "third-party-advisory"
                    ]
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Victor A. Morales, Senior Pentester Team Leader, GM Sectec, Corp.",
                    "type": "finder"
                },
                {
                    "lang": "en",
                    "value": "VulnCheck",
                    "type": "coordinator"
                }
            ],
            "timeline": [
                {
                    "time": "2025-12-15T17:00:00.000Z",
                    "lang": "en",
                    "value": "VulnCheck, as the third-party coordinator and intermediary, initiated outreach to Unisys and other potentially-related entities."
                }
            ],
            "source": {
                "discovery": "EXTERNAL"
            },
            "x_generator": {
                "engine": "Vulnogram 1.0.1"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-04-16T13:50:39.653259Z",
                                "id": "CVE-2026-39906",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-05-14T16:06:18.439Z"
                }
            }
        ]
    }
}