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Fencer Intel
high 8.8

CVE-2024-39840 json

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…

published 2y ago modified 4mo ago also EUVD-2024-38261

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 51%
public exploits
0
none known

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.

Patch / fix

  • factorio factorio 1.1.101

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CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
2y ago

Exploit prediction

0.64% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • factorio factorio

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.