{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-8398",
        "assignerOrgId": "e45d732a-8f6b-4b6b-be76-7420f6a2b988",
        "state": "PUBLISHED",
        "assignerShortName": "Kaspersky",
        "dateReserved": "2026-05-12T13:20:16.358Z",
        "datePublished": "2026-05-15T07:30:29.287Z",
        "dateUpdated": "2026-05-28T03:55:20.809Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "e45d732a-8f6b-4b6b-be76-7420f6a2b988",
                "shortName": "Kaspersky",
                "dateUpdated": "2026-05-15T07:30:29.287Z"
            },
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-506",
                            "description": "CWE-506: Embedded Malicious Code",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "AVB Disc Soft",
                    "product": "DAEMON Tools Lite",
                    "platforms": [
                        "Windows"
                    ],
                    "versions": [
                        {
                            "version": "12.5.0.2421",
                            "versionType": "semver",
                            "lessThan": "2.6.0.*",
                            "status": "affected"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A supply chain attack compromised the official installation packages of DAEMON Tools Lite (Windows versions 12.5.0.2421 through 12.5.0.2434), distributed from the legitimate website daemon-tools.cc between approximately April 8, 2026, and May 5, 2026. Attackers gained unauthorized access to the vendor's (AVB Disc Soft) build or distribution infrastructure and trojanized three binaries: DTHelper.exe, DiscSoftBusServiceLite.exe, and DTShellHlp.exe. These files were digitally signed with the legitimate AVB Disc Soft code-signing certificate, allowing the malicious installers to appear trustworthy and bypass signature-based detection."
                }
            ],
            "metrics": [
                {
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ],
                    "cvssV4_0": {
                        "baseScore": 9.3,
                        "baseSeverity": "CRITICAL",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                        "version": "4.0"
                    },
                    "cvssV3_1": {
                        "version": "3.1",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "availabilityImpact": "HIGH",
                        "baseScore": 9.8,
                        "baseSeverity": "CRITICAL",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
                    }
                }
            ],
            "solutions": [
                {
                    "lang": "en",
                    "value": "Users of potentially infected application are recommended to uninstall the application, run a full system scan using antivirus software with the latest version of the anti-virus databases, and install the latest version of DAEMON Tools Lite (12.6 or newer) from the official website."
                }
            ],
            "timeline": [
                {
                    "time": "2026-05-06T00:00:00.000Z",
                    "lang": "en",
                    "value": "Advisory published by vendor"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Igor Kuznetsov (Kaspersky)",
                    "type": "finder"
                },
                {
                    "lang": "en",
                    "value": "Georgy Kucherin (Kaspersky)",
                    "type": "finder"
                },
                {
                    "lang": "en",
                    "value": "Leonid Bezvershenko (Kaspersky)",
                    "type": "finder"
                },
                {
                    "lang": "en",
                    "value": "Anton Kargin (Kaspersky)",
                    "type": "finder"
                }
            ],
            "references": [
                {
                    "url": "https://securelist.com/tr/daemon-tools-backdoor/119654/",
                    "name": "DAEMON Tools software infected – supply chain attack ongoing since April 8, 2026",
                    "tags": [
                        "technical-description",
                        "third-party-advisory"
                    ]
                },
                {
                    "url": "https://blog.daemon-tools.cc/post/security-incident",
                    "name": "Security Incident Affecting DAEMON Tools Lite: What We Know So Far",
                    "tags": [
                        "vendor-advisory"
                    ]
                }
            ]
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-8398",
                        "tags": [
                            "government-resource"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-05-15T00:00:00+00:00",
                                "options": [
                                    {
                                        "Exploitation": "active"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3",
                                "id": "CVE-2026-8398"
                            }
                        }
                    },
                    {
                        "other": {
                            "type": "kev",
                            "content": {
                                "dateAdded": "2026-05-27",
                                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-8398"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-05-28T03:55:20.809Z"
                },
                "timeline": [
                    {
                        "time": "2026-05-27T00:00:00.000Z",
                        "lang": "en",
                        "value": "CVE-2026-8398 added to CISA KEV"
                    }
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}