Buffer overflow in Nintendo 64

CVE-2020-13109

Morita Shogi 64 through 2020-05-02 for Nintendo 64 devices allows remote attackers to execute arbitrary code via crafted packet data to the built-in modem because 0x800b3e94 (aka the IF subcommand to top-level command 7) has a stack-based buffer overflow.

Vulnerability class: Buffer Overflow

EPSS: 0.048 (91.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-13109?
CVE-2020-13109 is a critical-severity vulnerability in Nintendo 64, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2020-05-16.
How severe is CVE-2020-13109?
Critical severity. CVSS v3 base score is 9.8 out of 10.