CVE-2021-30110: Greyware Domain Time Ii

High severity, CVSS 7.5. EPSS: 2% chance of exploitation in the next 30 days.

dttray.exe in Greyware Automation Products Inc Domain Time II before 5.2.b.20210331 allows remote attackers to execute arbitrary code via a URL to a malicious update in a spoofed response to the UDP query used to check for updates.

Affected products

• Greyware Domain Time Ii: before 5.2.b.20210331 (fixed in 5.2.b.20210331)

Published 2021-07-22. Last modified 2026-06-17.