What’s Vulnerable › Vulnerabilities

CVE-2023-49676: CODESYS: Use after free vulnerability through corrupted project files

• Severity: medium (CVSS 5.5 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: 2024-05-06 · updated 2026-06-17
• Weakness: CWE-416

Description

An unauthenticated local attacker may trick a user to open corrupted project files to crash the system due to use after free vulnerability.

Affected products

• CODESYS Development System V2.3: before 2.3.9.73 — fixed in 2.3.9.73

How to fix

Upgrade to a fixed version: CODESYS Development System V2.3 2.3.9.73. Check the vendor advisory for mitigations.

References

• https://cert.vde.com/en/advisories/VDE-2024-024
• https://cert.vde.com/en/advisories/VDE-2024-024

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