Multiple Vulnerabilities Disclosed in CODESYS Industrial Control Software
Germany's dCERT published advisories 2026-0816 and 2026-1645 covering multiple vulnerabilities in CODESYS, a widely used industrial control and automation software platform. The notices indicate that more than one security flaw affects CODESYS components, raising potential risk for organizations that rely on the platform in operational technology and industrial control system environments.
The advisories were issued as separate disclosures, suggesting either newly identified issues or additional affected components beyond the initial notice. While the published entries provide no public synopsis, the repeated dCERT warnings signal that asset owners using CODESYS should review the referenced advisories, identify affected deployments, and prioritize vendor guidance and remediation to reduce exposure across ICS environments.

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How this story unfolded
2 events from the most recent confirmed update back to the earliest known activity.
dCERT publishes advisory 2026-1645 for multiple CODESYS vulnerabilities
dCERT later published advisory 2026-1645 concerning multiple vulnerabilities in CODESYS. Based on the provided references, this appears to be a separate advisory and thus a new timeline event.
dCERT publishes advisory 2026-0816 for multiple CODESYS vulnerabilities
dCERT issued advisory 2026-0816 covering multiple vulnerabilities affecting CODESYS. The reference provides no further technical details or remediation information.
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Sources
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