CVE-2026-8398 Daemon Tools Lite Embedded Malicious Code

Exploited in the wild Critical 9.3 Published Updated

Attackers compromised DAEMON Tools Lite installers to distribute trojanized binaries, enabling code execution on user systems.

Exploited in the wild
Since 27 May 2026
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-8398?

CVE-2026-8398 is a critical vulnerability in AVB Disc Soft DAEMON Tools Lite, published on 15 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-506

Which versions are affected by CVE-2026-8398?

It affects 1 product.

Products include Disc-Soft Daemon Tools.

How do I fix CVE-2026-8398?

No fix has been published for CVE-2026-8398 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 30 May 2026.

Is CVE-2026-8398 being exploited?

Yes. Attackers have exploited CVE-2026-8398 in the wild since at least 27 May 2026.

Sources

Also known as GHSA-rm3r-35x9-jv93.

Is CVE-2026-8398 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free