What’s Vulnerable › Vulnerabilities

CVE-2022-1071: User after free in mrb_vm_exec in mruby/mruby

• Severity: high (CVSS 8.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-03-26 · updated 2026-06-17
• Weakness: CWE-416

Description

User after free in mrb_vm_exec in GitHub repository mruby/mruby prior to 3.2.

Affected products

• mruby/mruby: through 3.1

References

• https://github.com/mruby/mruby/commit/aaa28a508903041dd7399d4159a8ace9766b022f
• https://huntr.dev/bounties/6597ece9-07af-415b-809b-919ce0a17cf3
• https://github.com/mruby/mruby/commit/aaa28a508903041dd7399d4159a8ace9766b022f
• https://huntr.dev/bounties/6597ece9-07af-415b-809b-919ce0a17cf3

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