Vulnerability Description
OpenPLC Runtime v3 contains an input validation flaw in the /upload-program-action endpoint: the epoch_time field supplied during program uploads is not validated and can be crafted to induce corruption of the programs database. After a successful malformed upload the runtime continues to operate until a restart; on restart the runtime can fail to start because of corrupted database entries, resulting in persistent denial of service requiring complete rebase of the product to recover. This vulnerability was remediated by commit 095ee09.
Related Weaknesses (CWE)
References
- https://autonomylogic.com/
- https://github.com/thiagoralves/OpenPLC_v3/pull/297/commits/095ee09623dd229b64ad
- https://openplc.discussion.community/post/persistant-dos-affecting-openplc-runti
- https://www.vulncheck.com/advisories/openplc-runtime-v3-persistent-denial-of-ser
- https://openplc.discussion.community/post/persistant-dos-affecting-openplc-runti
FAQ
What is CVE-2025-34226?
CVE-2025-34226 is a documented vulnerability. OpenPLC Runtime v3 contains an input validation flaw in the /upload-program-action endpoint: the epoch_time field supplied during program uploads is not validated and can be crafted to induce corrupti...
How severe is CVE-2025-34226?
CVSS scoring is not yet available for CVE-2025-34226. Check NVD for updates.
Is there a patch for CVE-2025-34226?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.