ICS OpenPLC Runtime v3 Persistent Denial of Service (CVE-2025-34226)

Rule ID

1237523

Severity

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 095ee09623dd229b64ad3a1db38a901a3772f6fc.

Impact

Denial of service

Recommendation

Update vendor's patch.

IPS Category

ICS threats

IPS Anomaly Group

N/A

IPS Rule Default Action

Allow

References

CVE-2025-34226

T1499

T0814

Keywords

N/A

Date Created

2025/10/28

Last Updated

2025/11/04

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