CVE-2020-14983 [Critical] | Memory Corruption in Chocolate Doom

CVE-2020-14983 is rated High Exploit Risk (84/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 2.25%). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.64% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

EDB-ID	Source	Kind	Published	Link
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#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.60%	2.25%	+1.64%
2	2026-01-23	0.68%	0.60%	-0.08%
3	2025-03-30	—	0.68%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.60%

2.25%

+1.64%

2026-01-23

0.68%

0.60%

-0.08%

2025-03-30

—

0.68%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
9.8	3.1	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	3.9	5.9	[email protected]
7.5	2.0	HIGH	`AV:N/AC:L/Au:N/C:P/I:P/A:P` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:L) Exploitation conditions are straightforward and predictable. Authentication (AU:N) No authentication is required. Confidentiality impact (C:P) Partial confidentiality impact. Integrity impact (I:P) Partial integrity impact. Availability impact (A:P) Partial availability impact.	10.0	6.4	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

9.8

3.1

CRITICAL

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

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

3.9

5.9

[email protected]

7.5

2.0

HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand

Access vector (AV:N): Can be exploited remotely over network reachability.
Access complexity (AC:L): Exploitation conditions are straightforward and predictable.
Authentication (AU:N): No authentication is required.
Confidentiality impact (C:P): Partial confidentiality impact.
Integrity impact (I:P): Partial integrity impact.
Availability impact (A:P): Partial availability impact.

10.0

6.4

[email protected]

OS Trackers for CVE-2020-14983

vendor	priority	summary	link
`debian`	not yet assigned	CVE-2020-14983 not yet assigned priority: Debian including 2 source packages (chocolate-doom, crispy-doom), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 10.	https://security-tracker.debian.org/tracker/CVE-2020-14983
`ubuntu`	medium	CVE-2020-14983 medium priority: Ubuntu including 2 source packages (chocolate-doom, crispy-doom), 34 status rows across 17 suites (bionic, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 22, DNE 4, needs-triage 4, ignored 2, needed 1, released 1.	https://ubuntu.com/security/CVE-2020-14983

Affected software / configurations for CVE-2020-14983

Vendor	Product	Version	Raw CPE
chocolate-doom	chocolate_doom	3.0.0	cpe:2.3:a:chocolate-doom:chocolate_doom:3.0.0:-::::::
chocolate-doom	crispy_doom	5.8.0	cpe:2.3:a:chocolate-doom:crispy_doom:5.8.0:::::::*
opensuse	backports	sle-15	cpe:2.3:o:opensuse:backports:sle-15:sp1::::::
opensuse	leap	15.1	cpe:2.3:o:opensuse:leap:15.1:::::::*
opensuse	leap	15.2	cpe:2.3:o:opensuse:leap:15.2:::::::*

References for CVE-2020-14983

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

URL

CVE-2020-14983

Public exploit references (Exploit-DB) for CVE-2020-14983

Exploit prediction scoring system (EPSS) score for CVE-2020-14983

Common vulnerability scoring system (CVSS) metrics for CVE-2020-14983

Weakness enumeration for CVE-2020-14983

OS Trackers for CVE-2020-14983

Affected software / configurations for CVE-2020-14983

References for CVE-2020-14983