What’s Vulnerable › Vulnerabilities

CVE-2023-5751: CODESYS: Development system prone to DoS through exposure of resource to wrong sphere

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-06-04 · updated 2026-06-17
• Weakness: CWE-668

Description

A local attacker with low privileges can read and modify any users files and cause a DoS in the working directory of the affected products due to exposure of resource to wrong sphere.

Affected products

• CODESYS Control Win (SL): before 3.5.20.10 — fixed in 3.5.20.10
• CODESYS Development System V3: before 3.5.20.10 — fixed in 3.5.20.10
• CODESYS Edge Gateway: before 3.5.20.10 — fixed in 3.5.20.10
• CODESYS Gateway Server V2: before 3.5.20.10 — fixed in 3.5.20.10
• CODESYS HMI (SL): before 3.5.20.10 — fixed in 3.5.20.10

How to fix

Upgrade to a fixed version: CODESYS Control Win (SL) 3.5.20.10; CODESYS Development System V3 3.5.20.10; CODESYS Edge Gateway 3.5.20.10; CODESYS Gateway Server V2 3.5.20.10; CODESYS HMI (SL) 3.5.20.10. Check the vendor advisory for mitigations.

References

• https://cert.vde.com/en/advisories/VDE-2024-027
• https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=18354&token=f3e92a942c3a2f90c272a5ded7598c6a0b5f4924&download=
• https://cert.vde.com/en/advisories/VDE-2024-027
• https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=18354&token=f3e92a942c3a2f90c272a5ded7598c6a0b5f4924&download=

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