OpenPLC Runtime v3 Persistent DoS

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-34226
StatePUBLISHED
AssignerVulnCheck
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-10-03 16:16:17 UTC
Updated2026-10-08 22:10:00 UTC
DescriptionOpenPLC 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.

Risk And Classification

Primary CVSS: v4.0 7.1 HIGH from [email protected]

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.006630000 probability, percentile 0.502300000 (date 2026-10-10)

Problem Types: CWE-20 | CWE-664 | CWE-664 CWE-664 Improper Control of a Resource Through Its Lifetime | CWE-20 CWE-20 Improper Input Validation

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary7.1HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/C...
4.0CNACVSS7.1HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Confidentiality
None
Integrity
Low
Availability
High
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Autonomy Logic OpenPLC Runtime affected 3.0 095ee09623dd229b64ad3a1db38a901a3772f6fc git Not specified

References

ReferenceSourceLinkTags
autonomylogic.com [email protected] autonomylogic.com
www.vulncheck.com/advisories/openplc-runtime-v3-persistent-denial-of-service [email protected] www.vulncheck.com
openplc.discussion.community/post/persistant-dos-affecting-openplc-runtime-13722844 134c704f-9b21-4f2e-91b3-4a467353bcc0 openplc.discussion.community
github.com/thiagoralves/OpenPLC_v3/pull/297/commits/095ee09623dd229b64ad... [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Eyodav (Mike G.A) (en)

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