What’s Vulnerable › Vulnerabilities

CVE-2026-38973

• Severity: medium (CVSS 4.4 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: 2026-07-06 · updated 2026-07-09
• Weakness: CWE-125

Description

mrubyc through release3.4.1 was found to contain an out-of-bounds read in builtin missing-method lookup inside mrbc_find_method().

References

• https://github.com/mrubyc/mrubyc
• https://github.com/mrubyc/mrubyc/commit/f83a8b67ca1c7c62ac0dd548a363d79f767c4e30
• https://github.com/mrubyc/mrubyc/issues/279%2C

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