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Advisorydata: live koppeling— laatst opgehaald: 7 november 2026 om 01:34.

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Advisory2026-03_VDE-2026-018

CODESYS Control V3 - Externally-controlled format string in Auditlog

CODESYS — CODESYS Control RTE (SL)

CODESYS PSIRThoog

Gepubliceerd

24 maart 2026

Laatste update

18 juni 2026

Gekoppelde CVE's

Getroffen sectoren

Risk evaluation

The CODESYS Control runtime system's CmpAuditLog component allows potentially unauthenticated remote attackers to control the format string of processed log messages. Due to the internal processing logic, the impact is limited to a crash of the CODESYS Control runtime.

Mitigatiesamenvatting

As a mitigation, the Audit Log feature can be disabled in the CODESYS Control runtime configuration file. When the Audit Log logger is not enabled, the affected functionality is no longer exposed and the vulnerability cannot be exploited. To disable the Audit Log feature, use the following settings. Depending on your existing configuration, the logger index may vary. [CmpLog] Logger.0.Name=.Audit.log Logger.0.Enable=0

Revisiegeschiedenis (2)
  1. Initiële publicatie — 24 maart 2026

    Initial revision.

  2. Update A — 18 juni 2026

    Updated remediation category - fixed SL runtimes are now available. Updated mitigation category - clarified description.

Officiële bron: CODESYS PSIRT