CVE-2020-14983

Name: CVE-2020-14983
Creator: NVD / NIST
Published: 2020-06-22T20:15:11.38+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.25%

Last modified Jun 17, 2026

CVE-2020-14983 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The server in Chocolate Doom 3.0.0 and Crispy Doom 5.8.0 doesn't validate the user-controlled num_players value, leading to a buffer overflow. A malicious user can overwrite the server's stack.. EPSS estimates a 2.25% chance of exploitation in the next 30 days.

Description

The server in Chocolate Doom 3.0.0 and Crispy Doom 5.8.0 doesn't validate the user-controlled num_players value, leading to a buffer overflow. A malicious user can overwrite the server's stack.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

2.25%

80.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

Affected Software

Vendor	Product	Versions	Update
Chocolate-Doom	Chocolate Doom	3.0.0	—
Chocolate-Doom	Crispy Doom	5.8.0	—
Opensuse	Backports	sle-15	Sp1
Opensuse	Leap	15.1	—
Opensuse	Leap	15.2	—

References

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00002.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00007.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00012.htmlMailing List, Third Party Advisory
https://github.com/chocolate-doom/chocolate-doom/issues/1293Exploit, Patch, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00002.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00007.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00012.htmlMailing List, Third Party Advisory
https://github.com/chocolate-doom/chocolate-doom/issues/1293Exploit, Patch, Third Party Advisory

Timeline

Published: Jun 22, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-14983?

The server in Chocolate Doom 3.0.0 and Crispy Doom 5.8.0 doesn't validate the user-controlled num_players value, leading to a buffer overflow. A malicious user can overwrite the server's stack.

How severe is CVE-2020-14983?

CVE-2020-14983 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.25% probability of exploitation in the next 30 days.

How do I fix CVE-2020-14983?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-14983?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST