CVE-2026-35226: CWE-787 Out-of-bounds Write in CODESYS CODESYS PROFINET
An out‑of‑bounds write vulnerability in the CODESYS PROFINET Controller allows an unauthenticated attacker on the same network segment to send malformed PROFINET communication data that triggers an exception in the affected PLC application. The exception is handled by the CODESYS Control runtime system and results in a controlled stop of the PLC application.
CVE-2026-35226: CWE-787 Out-of-bounds Write in CODESYS CODESYS PROFINET
Description
An out‑of‑bounds write vulnerability in the CODESYS PROFINET Controller allows an unauthenticated attacker on the same network segment to send malformed PROFINET communication data that triggers an exception in the affected PLC application. The exception is handled by the CODESYS Control runtime system and results in a controlled stop of the PLC application.
CVSS v4.0
Score 7.1high
Affected software
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- CERTVDE
- Date Reserved
- 2026-04-01T19:54:21.499Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a69adc79c2644c7f825aa82
Added to database: 07/29/2026, 07:37:43 UTC
Last updated: 07/29/2026, 08:22:01 UTC
Views: 4
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