CVE-2022-47949

Exp

The Nintendo NetworkBuffer class, as used in Animal Crossing: New Horizons before 2.0.6 and other products, allows remote attackers to execute arbitrary code via a large UDP packet that causes a buffer overflow, aka ENLBufferPwn. The victim must join a game session with the attacker. Other affected products include Mario Kart 7 before 1.2, Mario Kart 8, Mario Kart 8 Deluxe before 2.1.0, ARMS before 5.4.1, Splatoon, Splatoon 2 before 5.5.1, Splatoon 3 before late 2022, Super Mario Maker 2 before 3.0.2, and Nintendo Switch Sports before late 2022.

Published: 2022-12-24 Last update: 2025-04-14 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-47949 is rated High Exploit Risk (85.5/100): CVSS Critical severity, with high exploitation likelihood (EPSS 13.26%, 94th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2022-47949

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2022-47949

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-06 14.90% 13.26% -1.65%
2 2026-05-01 24.19% 14.90% -9.28%
3 2026-04-29 — 24.19% —

Full EPSS history (26 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-47949

CVSS metrics for this CVE.

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]
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]

Weakness enumeration for CVE-2022-47949

Affected software / configurations for CVE-2022-47949

Vendor Product Version Raw CPE
nintendo animal_crossing:_new_horizons < 2.0.6 cpe:2.3:a:nintendo:animal_crossing\:_new_horizons:*:*:*:*:*:*:*:*
nintendo arms < 5.4.1 cpe:2.3:a:nintendo:arms:*:*:*:*:*:*:*:*
nintendo mario_kart_7 < 1.2 cpe:2.3:a:nintendo:mario_kart_7:*:*:*:*:*:*:*:*
nintendo mario_kart_8 < 2.1.0 cpe:2.3:a:nintendo:mario_kart_8:*:*:*:*:deluxe:*:*:*
nintendo mario_kart_8 — cpe:2.3:a:nintendo:mario_kart_8:-:*:*:*:-:*:*:*
nintendo splatoon — cpe:2.3:a:nintendo:splatoon:*:*:*:*:*:*:*:*
nintendo splatoon_2 < 5.5.1 cpe:2.3:a:nintendo:splatoon_2:*:*:*:*:*:*:*:*
nintendo splatoon_3 — cpe:2.3:a:nintendo:splatoon_3:*:*:*:*:*:*:*:*
nintendo super_mario_maker_2 < 3.0.2 cpe:2.3:a:nintendo:super_mario_maker_2:*:*:*:*:*:*:*:*
nintendo switch_sports — cpe:2.3:a:nintendo:switch_sports:*:*:*:*:*:*:*:*

References for CVE-2022-47949

URL Tags
https://github.com/PabloMK7/ENLBufferPwn Exploit Third Party Advisory
cvelogic Threat Intelligence