Improper input validation in Autonomy Logic Openplc Runtime
CVE-2025-34226
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
EPSS exploit prediction
EPSS: 0.007 (49.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 49.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Autonomy Logic Openplc Runtime — versions 3.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- autonomylogic.com/ (product)
- openplc.discussion.community/post/persistant-dos-affecting-openplc-runtime-1372… (issue-tracking)
- github.com/thiagoralves/OpenPLC_v3/pull/297/commits/095ee09623dd229b64ad3a1db38… (issue-tracking, patch)
- www.vulncheck.com/advisories/openplc-runtime-v3-persistent-denial-of-service (third-party-advisory)
Frequently asked questions
- What is CVE-2025-34226?
- CVE-2025-34226 is a vulnerability in Autonomy Logic Openplc Runtime, classified under Improper Input Validation. Published 2025-10-03.
- Is CVE-2025-34226 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.