What’s Vulnerable › Vulnerabilities

CVE-2022-0080: Heap-based Buffer Overflow in mruby/mruby

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-01-02 · updated 2026-06-17
• Weakness: CWE-122

Description

mruby is vulnerable to Heap-based Buffer Overflow

Affected products

• mruby/mruby: through 3.0.0

References

• https://github.com/mruby/mruby/commit/28ccc664e5dcd3f9d55173e9afde77c4705a9ab6
• https://huntr.dev/bounties/59a70392-4864-4ce3-8e35-6ac2111d1e2e
• https://github.com/mruby/mruby/commit/28ccc664e5dcd3f9d55173e9afde77c4705a9ab6
• https://huntr.dev/bounties/59a70392-4864-4ce3-8e35-6ac2111d1e2e

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