# CVE-2026-8398: Daemon Tools Lite Embedded Malicious Code Vulnerability

> CVE-2026-8398: Daemon Tools Lite Embedded Malicious Code Vulnerability. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2026-8398
Last updated: 2026-06-17T11:03:53Z

- Published: 2026-05-15 07:30 UTC · Updated: 2026-06-17 11:03 UTC · Assigner: Kaspersky
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 1.5%, 73th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2026-05-27, federal due date 2026-05-30, ransomware use: Unknown
- CWE: 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.

## CISA required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

## Affected vendors and products

- AVB Disc Soft: DAEMON Tools Lite

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-8398)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-8398)
- [https://blog.daemon-tools.cc/post/security-incident](https://blog.daemon-tools.cc/post/security-incident)
- [https://securelist.com/tr/daemon-tools-backdoor/119654/](https://securelist.com/tr/daemon-tools-backdoor/119654/)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-8398 · Markdown: https://rewindex.com/cve/CVE-2026-8398.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-8398 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:50:31.200Z