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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-3509

CODESYS Control Audit Log Format String DoS

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

CODESYS CODESYS Control RTE (SL)

Default version status: unaffected

  • 3.5.17.0 to < 3.5.22.0affected

CODESYS CODESYS Control RTE (for Beckhoff CX) SL

Default version status: unaffected

  • 3.5.17.0 to < 3.5.22.0affected

CODESYS CODESYS Control Win (SL)

Default version status: unaffected

  • 3.5.17.0 to < 3.5.22.0affected

CODESYS CODESYS Runtime Toolkit

Default version status: unaffected

  • 3.5.17.0 to < 3.5.22.0affected

CODESYS CODESYS Control for BeagleBone SL

Default version status: unaffected

  • 4.1.0.0 to < 4.21.0.0affected

CODESYS CODESYS Control for emPC-A/iMX6 SL

Default version status: unaffected

  • 4.1.0.0 to < 4.21.0.0affected

CODESYS CODESYS Control for IOT2000 SL

Default version status: unaffected

  • 4.1.0.0 to < 4.21.0.0affected

CODESYS CODESYS Control for Linux ARM SL

Default version status: unaffected

  • 4.1.0.0 to < 4.21.0.0affected

CODESYS CODESYS Control for Linux SL

Default version status: unaffected

  • 4.1.0.0 to < 4.21.0.0affected

CODESYS CODESYS Control for PFC100 SL

Default version status: unaffected

  • 4.1.0.0 to < 4.21.0.0affected

CODESYS CODESYS Control for PFC200 SL

Default version status: unaffected

  • 4.1.0.0 to < 4.21.0.0affected

CODESYS CODESYS Control for PLCnext SL

Default version status: unaffected

  • 4.1.0.0 to < 4.21.0.0affected

CODESYS CODESYS Control for Raspberry Pi SL

Default version status: unaffected

  • 4.1.0.0 to < 4.21.0.0affected

CODESYS CODESYS Control for WAGO Touch Panels 600 SL

Default version status: unaffected

  • 4.1.0.0 to < 4.21.0.0affected

CODESYS CODESYS Virtual Control SL

Default version status: unaffected

  • 4.1.0.0 to < 4.21.0.0affected

References