CVE-2026-3509 (GCVE-0-2026-3509)

Vulnerability from cvelistv5 – Published: 2026-03-24 07:42 – Updated: 2026-03-26 12:35
VLAI?
Title
CODESYS Control Audit Log Format String DoS
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.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-134 - Use of Externally-Controlled Format String
Assigner
References
Impacted products
Vendor Product Version
CODESYS CODESYS Control RTE (SL) Affected: 3.5.17.0 , < 3.5.22.0 (semver)
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    CODESYS CODESYS Control RTE (for Beckhoff CX) SL Affected: 3.5.17.0 , < 3.5.22.0 (semver)
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    CODESYS CODESYS Control Win (SL) Affected: 3.5.17.0 , < 3.5.22.0 (semver)
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    CODESYS CODESYS Runtime Toolkit Affected: 3.5.17.0 , < 3.5.22.0 (semver)
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    CODESYS CODESYS Control for BeagleBone SL Affected: 4.1.0.0 , < 4.21.0.0 (semver)
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    CODESYS CODESYS Control for emPC-A/iMX6 SL Affected: 4.1.0.0 , < 4.21.0.0 (semver)
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    CODESYS CODESYS Control for IOT2000 SL Affected: 4.1.0.0 , < 4.21.0.0 (semver)
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    CODESYS CODESYS Control for Linux ARM SL Affected: 4.1.0.0 , < 4.21.0.0 (semver)
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    CODESYS CODESYS Control for Linux SL Affected: 4.1.0.0 , < 4.21.0.0 (semver)
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    CODESYS CODESYS Control for PFC100 SL Affected: 4.1.0.0 , < 4.21.0.0 (semver)
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    CODESYS CODESYS Control for PFC200 SL Affected: 4.1.0.0 , < 4.21.0.0 (semver)
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    CODESYS CODESYS Control for PLCnext SL Affected: 4.1.0.0 , < 4.21.0.0 (semver)
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    CODESYS CODESYS Control for Raspberry Pi SL Affected: 4.1.0.0 , < 4.21.0.0 (semver)
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    CODESYS CODESYS Control for WAGO Touch Panels 600 SL Affected: 4.1.0.0 , < 4.21.0.0 (semver)
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    CODESYS CODESYS Virtual Control SL Affected: 4.1.0.0 , < 4.21.0.0 (semver)
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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.