CVE-2022-47949

24.12.2022, 23:15

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.

Classic Buffer Overflow

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	9.8 CRITICAL	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitre	CNA	9.8 CRITICAL	NETWORK	LOW	NONE	CVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:U/UI:N
CVE	ADP	---				---
CISA-ADP	ADP	---				---

Base Score

CVSS 3.x

EPSS Score

Percentile: 98%

Vendor	Product	Version
nintendo	animal_crossing\	𝑥 < 2.0.6
nintendo	arms	𝑥 < 5.4.1
nintendo	mario_kart_7	𝑥 < 1.2
nintendo	mario_kart_8	𝑥 < 2.1.0
nintendo	mario_kart_8	-
nintendo	splatoon	*
nintendo	splatoon_2	𝑥 < 5.5.1
nintendo	splatoon_3	*
nintendo	super_mario_maker_2	𝑥 < 3.0.2
nintendo	switch_sports	*

𝑥

= Vulnerable software versions

Known Exploits!

Common Weakness Enumeration

CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
The program copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

References

https://github.com/PabloMK7/ENLBufferPwn