CVE-2020-14939: An issue was discovered in savestruct_internal.c in FreedroidRPG 1.0rc2

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HIGH 7.8DOWNGRADE

CVE-2020-14939 is a high-severity flaw (CVSS 7.8) affecting freedroidrpg. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in savestruct_internal.c in FreedroidRPG 1.0rc2. Saved game files are composed of Lua scripts that recover a game's state. A file can be modified to put any Lua code inside, leading to arbitrary code execution while loading.

Why this priority

High severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.3% (top 29%)
CISA exploited list	No
Weakness	CWE-20
Published	2020-06-23
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: freedroid

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-06-23 10:15 UTCPublished CVE record published
2026-06-17 02:55 UTCUpdated Record last modified

freedroid freedroidrpg DOWNGRADE

Affected: 1.0 rc2

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy freedroidrpg || rpm -q freedroidrpg || freedroidrpg --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison freedroidrpg sudo apt install freedroidrpg=<VERSION_BEFORE_1.0> sudo apt-mark hold freedroidrpg

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list freedroidrpg sudo dnf downgrade freedroidrpg-<VERSION_BEFORE_1.0> sudo dnf versionlock add freedroidrpg

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-14939?

freedroidrpg: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-14939 being exploited?

CVE-2020-14939 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-14939 affect?

CVE-2020-14939 affects freedroidrpg. Severity is high (CVSS 7.8). An issue was discovered in savestruct_internal.c in FreedroidRPG 1.0rc2. Saved game files are composed of Lua scripts that recover a game's state. A file can be modified to put any Lua code inside, leading to arbitrary code execution while

How urgent is CVE-2020-14939?

Priority 50/100. High severity; Public exploit reference

Related CVEs

CVE-2020-14938 CRITICAL 9.8 DOWNGRADE An issue was discovered in map.c in FreedroidRPG 1.0rc2

References

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