CVE-2026-3509 - Vulnerability Details - OpenCVE

An unauthenticated remote attacker may be able to control the format string of messages processed by the Audit Log of the CODESYS Control runtime system, potentially resulting in a denial‑of‑service (DoS) condition.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

No data.

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No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://certvde.com/de/advisories/VDE-2026-018

History

Tue, 24 Mar 2026 08:00:00 +0000

Type	Values Removed	Values Added
Description		An unauthenticated remote attacker may be able to control the format string of messages processed by the Audit Log of the CODESYS Control runtime system, potentially resulting in a denial‑of‑service (DoS) condition.
Title		CODESYS Control Audit Log Format String DoS
Weaknesses		CWE-134
References		https://certvde.com/de/advisories/VDE-2026-018
Metrics		cvssV3_1 `{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: CERTVDE

Published: 2026-03-24T07:42:33.820Z

Updated: 2026-03-24T07:42:33.820Z

Reserved: 2026-03-04T09:24:19.745Z

Link: CVE-2026-3509

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-03-24T08:16:01.657

Modified: 2026-03-24T08:16:01.657

Link: CVE-2026-3509

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-134

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