{"affected":[{"defaultStatus":"unaffected","platforms":["Windows"],"product":"DAEMON Tools Lite","source":"CNA: Kaspersky","vendor":"AVB Disc Soft","versions":[{"lessThan":"12.6.0.*","status":"affected","version":"12.5.0.2421","versionType":"semver"}]}],"cpeConfigurations":[{"negate":false,"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:disc-soft:daemon_tools:12.5.1:*:*:*:lite:*:*:*","vulnerable":true}],"negate":false,"operator":"OR"},{"cpeMatch":[{"criteria":"cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*","vulnerable":false}],"negate":false,"operator":"OR"}],"operator":"AND"}],"cveId":"CVE-2026-8398","cwes":["CWE-506"],"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":"2026-11-10","percentile":0.73712,"score":0.01456},"exploits":[{"kind":"exploit","source":"vulnerability@kaspersky.com","url":"https://securelist.com/tr/daemon-tools-backdoor/119654/"}],"kev":{"addedAt":1779840000000,"dueDateAt":1780099200000,"knownRansomwareUse":false,"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.","vendor":"Daemon","vulnerabilityName":"Daemon Tools Lite Embedded Malicious Code Vulnerability"},"metrics":[{"score":9.3,"severity":"critical","source":"CNA: Kaspersky","vector":"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"},{"score":9.8,"severity":"critical","source":"CNA: Kaspersky","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},{"score":9.3,"severity":"critical","source":"NVD: vulnerability@kaspersky.com","vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","version":"4.0"},{"score":9.8,"severity":"critical","source":"NVD: vulnerability@kaspersky.com","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}],"modifiedAt":1794413845553,"publishedAt":1778830229287,"references":[{"source":"CNA: Kaspersky","tags":["technical-description","third-party-advisory"],"url":"https://securelist.com/tr/daemon-tools-backdoor/119654/"},{"source":"CNA: Kaspersky","tags":["vendor-advisory"],"url":"https://blog.daemon-tools.cc/post/security-incident"},{"source":"ADP: CISA-ADP","tags":["government-resource"],"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-8398"},{"source":"vulnerability@kaspersky.com","tags":["Vendor Advisory"],"url":"https://blog.daemon-tools.cc/post/security-incident"},{"source":"vulnerability@kaspersky.com","tags":["Exploit","Third Party Advisory"],"url":"https://securelist.com/tr/daemon-tools-backdoor/119654/"},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["US Government Resource"],"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-8398"}],"remediation":[{"kind":"fix","source":"CNA: Kaspersky","text":"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."}],"revision":"08536fb5d067ad9b9dc882fb3b3d96d9db08f0e7fb9271d601f8f89f39a4bfb4","sources":[{"modifiedAt":1794410885468,"name":"CNA: Kaspersky","retrievedAt":1794413442640,"url":"https://www.cve.org/CVERecord?id=CVE-2026-8398"},{"modifiedAt":1794413845553,"name":"NVD","retrievedAt":1794420943253,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8398"},{"modifiedAt":null,"name":"CISA KEV","retrievedAt":1793593264529,"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794413449546,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-8398"}],"ssvc":{"assessedAt":1778803200000,"automatable":"yes","exploitation":"active","source":"ADP: CISA-ADP","technicalImpact":"total"},"status":"published","title":"Daemon Tools Lite Embedded Malicious Code Vulnerability","updatedAt":1794420943253}