{"history":[{"alert":0,"cve":"CVE-2026-8398","id":23470,"kind":"epss","observed_at":1794500401,"payload":"{\"date\": \"2026-11-12\", \"epss\": 0.01456, \"percentile\": 0.73865}"},{"alert":0,"cve":"CVE-2026-8398","id":20945,"kind":"epss","observed_at":1794327601,"payload":"{\"date\": \"2026-11-10\", \"epss\": 0.01456, \"percentile\": 0.73712}"},{"alert":0,"cve":"CVE-2026-8398","id":18816,"kind":"epss","observed_at":1794241201,"payload":"{\"date\": \"2026-11-09\", \"epss\": 0.01456, \"percentile\": 0.7368}"},{"alert":0,"cve":"CVE-2026-8398","id":16882,"kind":"epss","observed_at":1794154800,"payload":"{\"date\": \"2026-11-08\", \"epss\": 0.01456, \"percentile\": 0.73668}"},{"alert":0,"cve":"CVE-2026-8398","id":14860,"kind":"epss","observed_at":1794068402,"payload":"{\"date\": \"2026-11-07\", \"epss\": 0.01456, \"percentile\": 0.73651}"},{"alert":0,"cve":"CVE-2026-8398","id":12641,"kind":"epss","observed_at":1793982001,"payload":"{\"date\": \"2026-11-06\", \"epss\": 0.01456, \"percentile\": 0.73612}"},{"alert":0,"cve":"CVE-2026-8398","id":10623,"kind":"epss","observed_at":1793938800,"payload":"{\"date\": \"2026-11-05\", \"epss\": 0.01456, \"percentile\": 0.73589}"},{"alert":0,"cve":"CVE-2026-8398","id":8170,"kind":"epss","observed_at":1793809200,"payload":"{\"date\": \"2026-11-04\", \"epss\": 0.01456, \"percentile\": 0.73569}"},{"alert":0,"cve":"CVE-2026-8398","id":5944,"kind":"epss","observed_at":1793722800,"payload":"{\"date\": \"2026-11-03\", \"epss\": 0.01456, \"percentile\": 0.73526}"},{"alert":0,"cve":"CVE-2026-8398","id":3647,"kind":"epss","observed_at":1793665375,"payload":"{\"date\": \"2026-11-02\", \"epss\": 0.01456, \"percentile\": 0.73494}"},{"alert":1,"cve":"CVE-2026-8398","id":1852,"kind":"cna","observed_at":1793665375,"payload":"{\"containers\": {\"adp\": [{\"metrics\": [{\"other\": {\"content\": {\"id\": \"CVE-2026-8398\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"role\": \"CISA Coordinator\", \"timestamp\": \"2026-05-15T00:00:00+00:00\", \"version\": \"2.0.3\"}, \"type\": \"ssvc\"}}, {\"other\": {\"content\": {\"dateAdded\": \"2026-05-27\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-8398\"}, \"type\": \"kev\"}}], \"providerMetadata\": {\"dateUpdated\": \"2026-05-28T03:55:20.809Z\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\"}, \"references\": [{\"tags\": [\"government-resource\"], \"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-8398\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-05-27T00:00:00.000Z\", \"value\": \"CVE-2026-8398 added to CISA KEV\"}], \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"affected\": [{\"defaultStatus\": \"unaffected\", \"platforms\": [\"Windows\"], \"product\": \"DAEMON Tools Lite\", \"vendor\": \"AVB Disc Soft\", \"versions\": [{\"lessThan\": \"2.6.0.*\", \"status\": \"affected\", \"version\": \"12.5.0.2421\", \"versionType\": \"semver\"}]}], \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Igor Kuznetsov (Kaspersky)\"}, {\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Georgy Kucherin (Kaspersky)\"}, {\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Leonid Bezvershenko (Kaspersky)\"}, {\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Anton Kargin (Kaspersky)\"}], \"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\": [{\"cvssV3_1\": {\"attackComplexity\": \"LOW\", \"attackVector\": \"NETWORK\", \"availabilityImpact\": \"HIGH\", \"baseScore\": 9.8, \"baseSeverity\": \"CRITICAL\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"scope\": \"UNCHANGED\", \"userInteraction\": \"NONE\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"version\": \"3.1\"}, \"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\"}, \"format\": \"CVSS\", \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"problemTypes\": [{\"descriptions\": [{\"cweId\": \"CWE-506\", \"description\": \"CWE-506: Embedded Malicious Code\", \"lang\": \"en\", \"type\": \"CWE\"}]}], \"providerMetadata\": {\"dateUpdated\": \"2026-05-15T07:30:29.287Z\", \"orgId\": \"e45d732a-8f6b-4b6b-be76-7420f6a2b988\", \"shortName\": \"Kaspersky\"}, \"references\": [{\"name\": \"DAEMON Tools software infected \\u2013 supply chain attack ongoing since April 8, 2026\", \"tags\": [\"technical-description\", \"third-party-advisory\"], \"url\": \"https://securelist.com/tr/daemon-tools-backdoor/119654/\"}, {\"name\": \"Security Incident Affecting DAEMON Tools Lite: What We Know So Far\", \"tags\": [\"vendor-advisory\"], \"url\": \"https://blog.daemon-tools.cc/post/security-incident\"}], \"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\": [{\"lang\": \"en\", \"time\": \"2026-05-06T00:00:00.000Z\", \"value\": \"Advisory published by vendor\"}]}}, \"cveMetadata\": {\"assignerOrgId\": \"e45d732a-8f6b-4b6b-be76-7420f6a2b988\", \"assignerShortName\": \"Kaspersky\", \"cveId\": \"CVE-2026-8398\", \"datePublished\": \"2026-05-15T07:30:29.287Z\", \"dateReserved\": \"2026-05-12T13:20:16.358Z\", \"dateUpdated\": \"2026-05-28T03:55:20.809Z\", \"state\": \"PUBLISHED\"}, \"dataType\": \"CVE_RECORD\", \"dataVersion\": \"5.2\"}"},{"alert":1,"cve":"CVE-2026-8398","id":163,"kind":"kev","observed_at":1793665375,"payload":"{\"cveID\": \"CVE-2026-8398\", \"cwes\": [\"CWE-506\"], \"dateAdded\": \"2026-05-27\", \"dueDate\": \"2026-05-30\", \"forensicTriage\": \"No\", \"knownRansomwareCampaignUse\": \"Unknown\", \"notes\": \"https://blog.daemon-tools.cc/post/security-incident ; https://nvd.nist.gov/vuln/detail/CVE-2026-8398\", \"product\": \"Daemon Tools Lite\", \"requiredAction\": \"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.\", \"shortDescription\": \"Daemon Tools contains an unspecified vulnerability that has a high impact on confidentiality, integrity, and availability.\", \"vendorProject\": \"Daemon\", \"vulnerabilityName\": \"Daemon Tools Lite Embedded Malicious Code Vulnerability\"}"}],"record":{"affected":[{"defaultStatus":"unaffected","platforms":["Windows"],"product":"DAEMON Tools Lite","vendor":"AVB Disc Soft","versions":[{"lessThan":"2.6.0.*","status":"affected","version":"12.5.0.2421","versionType":"semver"}]}],"cna":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-8398","options":[{"Exploitation":"active"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2026-05-15T00:00:00+00:00","version":"2.0.3"},"type":"ssvc"}},{"other":{"content":{"dateAdded":"2026-05-27","reference":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-8398"},"type":"kev"}}],"providerMetadata":{"dateUpdated":"2026-05-28T03:55:20.809Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"references":[{"tags":["government-resource"],"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-8398"}],"timeline":[{"lang":"en","time":"2026-05-27T00:00:00.000Z","value":"CVE-2026-8398 added to CISA KEV"}],"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"unaffected","platforms":["Windows"],"product":"DAEMON Tools Lite","vendor":"AVB Disc Soft","versions":[{"lessThan":"2.6.0.*","status":"affected","version":"12.5.0.2421","versionType":"semver"}]}],"credits":[{"lang":"en","type":"finder","value":"Igor Kuznetsov (Kaspersky)"},{"lang":"en","type":"finder","value":"Georgy Kucherin (Kaspersky)"},{"lang":"en","type":"finder","value":"Leonid Bezvershenko (Kaspersky)"},{"lang":"en","type":"finder","value":"Anton Kargin (Kaspersky)"}],"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":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"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"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-506","description":"CWE-506: Embedded Malicious Code","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-05-15T07:30:29.287Z","orgId":"e45d732a-8f6b-4b6b-be76-7420f6a2b988","shortName":"Kaspersky"},"references":[{"name":"DAEMON Tools software infected \u2013 supply chain attack ongoing since April 8, 2026","tags":["technical-description","third-party-advisory"],"url":"https://securelist.com/tr/daemon-tools-backdoor/119654/"},{"name":"Security Incident Affecting DAEMON Tools Lite: What We Know So Far","tags":["vendor-advisory"],"url":"https://blog.daemon-tools.cc/post/security-incident"}],"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":[{"lang":"en","time":"2026-05-06T00:00:00.000Z","value":"Advisory published by vendor"}]}},"cveMetadata":{"assignerOrgId":"e45d732a-8f6b-4b6b-be76-7420f6a2b988","assignerShortName":"Kaspersky","cveId":"CVE-2026-8398","datePublished":"2026-05-15T07:30:29.287Z","dateReserved":"2026-05-12T13:20:16.358Z","dateUpdated":"2026-05-28T03:55:20.809Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"cna_checked":1794111601,"cve":"CVE-2026-8398","description":"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.","epss":{"date":"2026-11-12","epss":0.01456,"percentile":0.73865},"epss_checked":1794522003,"first_seen":1793665375,"kev":{"cveID":"CVE-2026-8398","cwes":["CWE-506"],"dateAdded":"2026-05-27","dueDate":"2026-05-30","forensicTriage":"No","knownRansomwareCampaignUse":"Unknown","notes":"https://blog.daemon-tools.cc/post/security-incident ; https://nvd.nist.gov/vuln/detail/CVE-2026-8398","product":"Daemon Tools Lite","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","shortDescription":"Daemon Tools contains an unspecified vulnerability that has a high impact on confidentiality, integrity, and availability.","vendorProject":"Daemon","vulnerabilityName":"Daemon Tools Lite Embedded Malicious Code Vulnerability"},"kev_checked":1794522003,"products":"AVB Disc Soft DAEMON Tools Lite","references":["https://securelist.com/tr/daemon-tools-backdoor/119654/","https://blog.daemon-tools.cc/post/security-incident","https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-8398"],"score":{"baseScore":9.3,"baseSeverity":"CRITICAL","provider":"Kaspersky","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"},"solutions":"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.","state":"PUBLISHED","title":"Daemon Tools Lite Embedded Malicious Code Vulnerability","updated_at":1794500401,"workarounds":""},"sources":[]}
