What’s Vulnerable › Vulnerabilities

CVE-2024-34454

• Severity: high (CVSS 7.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-26 · updated 2026-06-17
• Weakness: CWE-269

Description

Nintendo Wii U OS 5.5.5 allows man-in-the-middle attackers to forge SSL certificates as though they came from a Root CA, because there is a secondary verification mechanism that only checks whether a CA is known and ignores the CA details and signature (and because * is accepted as a Common Name).

Affected products

• Nintendo Wii U: 5.5.5

References

• https://github.com/PretendoNetwork/SSSL
• https://github.com/PretendoNetwork/SSSL-DNS
• https://github.com/PretendoNetwork/SSSL
• https://github.com/PretendoNetwork/SSSL-DNS

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