CVE-2025-34226
High
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.
SeverityHigh
CVSS7.1
Exploit probability—
ProductOpenPLC Runtime
PublishedOct 3, 2025
First seenOct 3, 2025
Weakness typeCWE-664CWE-664CWE-20Improper input validation
How to fix
Update
- Autonomy Logic OpenPLC Runtime095ee09623dd229b64ad3a1db38a901a3772f6fc or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Autonomy Logic OpenPLC Runtime | 3.0 ≤ v < 095ee09623dd229b64ad3a1db38a901a3772f6fc | 095ee09623dd229b64ad3a1db38a901a3772f6fc |
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