🛡️ CVE-2022-47949
🔴 CVSS 9.8 — Critical ⚠️ Exploit Public CWE-120 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-120
Public Exploit ⚠️ Yes
Source NVD
Published 2022-12-24
Updated 2026-06-08
Modified 2025-04-14
Fix URL N/A

Affected Packages

Software From version Fixed in
animal-crossing\ — 2.0.6
arms — 5.4.1
mario-kart-7 — 1.2
mario-kart-8 — —
splatoon — —
splatoon-2 — 5.5.1
splatoon-3 — —
super-mario-maker-2 — 3.0.2
switch-sports — —

References

Exploit, Third Party Advisory https://github.com/PabloMK7/ENLBufferPwn
Exploit, Third Party Advisory https://github.com/PabloMK7/ENLBufferPwn

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