CVE-2024-39840
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...
- Published
- Jun 29, 2024
- Updated
- Aug 2, 2024
- Assigning CNA
- mitre
- Evidence observed
- Aug 9, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 49.1%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
1Proof-of-concept exploit for CVE-2024-39840, a remote code execution vulnerability in Factorio 1.1.86. Adapted from a detailed writeup, demonstrating exploitation via Lua scripting.
Responsible use
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