CVE-2026-3509

Summary

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 Software

VendorProductVersion RangeStatus
CODESYSCODESYS Control RTE (SL)3.5.17.0 < 3.5.22.0affected
CODESYSCODESYS Control RTE (for Beckhoff CX) SL3.5.17.0 < 3.5.22.0affected
CODESYSCODESYS Control Win (SL)3.5.17.0 < 3.5.22.0affected
CODESYSCODESYS Runtime Toolkit3.5.17.0 < 3.5.22.0affected
CODESYSCODESYS Control for BeagleBone SL4.1.0.0 < 4.21.0.0affected
CODESYSCODESYS Control for emPC-A/iMX6 SL4.1.0.0 < 4.21.0.0affected
CODESYSCODESYS Control for IOT2000 SL4.1.0.0 < 4.21.0.0affected
CODESYSCODESYS Control for Linux ARM SL4.1.0.0 < 4.21.0.0affected
CODESYSCODESYS Control for Linux SL4.1.0.0 < 4.21.0.0affected
CODESYSCODESYS Control for PFC100 SL4.1.0.0 < 4.21.0.0affected
CODESYSCODESYS Control for PFC200 SL4.1.0.0 < 4.21.0.0affected
CODESYSCODESYS Control for PLCnext SL4.1.0.0 < 4.21.0.0affected
CODESYSCODESYS Control for Raspberry Pi SL4.1.0.0 < 4.21.0.0affected
CODESYSCODESYS Control for WAGO Touch Panels 600 SL4.1.0.0 < 4.21.0.0affected
CODESYSCODESYS Virtual Control SL4.1.0.0 < 4.21.0.0affected

Weaknesses

  • CWE-134: CWE-134 Use of Externally-Controlled Format String

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References