What’s Vulnerable › Vulnerabilities

CVE-2024-6876: Out-of-bounds read in OSCAT-Library

• Severity: medium (CVSS 4.4 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: 2024-09-10 · updated 2026-06-17
• Weakness: CWE-125

Description

Out-of-Bounds read vulnerability in OSCAT Basic Library allows an local, unprivileged attacker to access limited internal data of the PLC which may lead to a crash of the affected service.

Affected products

• CODESYS OSCAT Basic Library: before 3.5.5.0 — fixed in 3.5.5.0

How to fix

Upgrade to a fixed version: CODESYS OSCAT Basic Library 3.5.5.0. Check the vendor advisory for mitigations.

References

• https://certvde.com/en/advisories/VDE-2024-046/
• https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=18601&token=27389a52e058d95ff70b17a2370fedf07e073034&download=

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