CVE-2020-14939Public exploit

Code execution via unsandboxed Lua save loading

Published Jun 23, 2020 · Updated Aug 4, 2024

Code injection in FreedroidRPG 1.0rc2 allows local users to execute arbitrary code by loading a crafted saved-game file. load_game_data() passes the saved game's Lua text to run_lua() without sandboxing, so embedded calls such as os.execute run with the game's privileges. A victim must obtain and deliberately load the modified save, after which the injected code can read, alter, or delete data available to that account.

CVSS severity7.8
High
EPSS probability1.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in FreedroidRPG 1.0rc2 allows local users to execute arbitrary code by loading a crafted saved-game file. load_game_data() passes the saved game's Lua text to run_lua() without sandboxing, so embedded calls such as os.execute run with the game's privileges. A victim must obtain and deliberately load the modified save, after which the injected code can read, alter, or delete data available to that account.

The record

CVE
CVE-2020-14939
Published
Jun 23, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-20, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 23, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-20Improper Input Validation
T1204.002User Execution: Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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