What’s Vulnerable › Vulnerabilities

CVE-2024-39840

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-06-29 · updated 2026-06-17
• Weakness: CWE-787

Description

Factorio before 1.1.101 allows a crafted server to execute arbitrary code on clients via a custom map that leverages the ability of certain Lua base module functions to execute bytecode and generate fake objects.

Affected products

• Factorio: before 1.1.101 — fixed in 1.1.101

How to fix

Upgrade to a fixed version: Factorio 1.1.101. Check the vendor advisory for mitigations.

References

• https://memorycorruption.net/posts/rce-lua-factorio/
• https://news.ycombinator.com/item?id=40830005
• https://memorycorruption.net/posts/rce-lua-factorio/
• https://news.ycombinator.com/item?id=40830005

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