What’s Vulnerable › Vulnerabilities

CVE-2022-0890: NULL Pointer Dereference in mruby/mruby

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-03-10 · updated 2026-06-17
• Weakness: CWE-476

Description

NULL Pointer Dereference in GitHub repository mruby/mruby prior to 3.2.

Affected products

• mruby/mruby: before 3.2 — fixed in 3.2

How to fix

Upgrade to a fixed version: mruby/mruby 3.2. Check the vendor advisory for mitigations.

References

• https://github.com/mruby/mruby/commit/da48e7dbb20024c198493b8724adae1b842083aa
• https://huntr.dev/bounties/68e09ec1-6cc7-48b8-981d-30f478c70276
• https://github.com/mruby/mruby/commit/da48e7dbb20024c198493b8724adae1b842083aa
• https://huntr.dev/bounties/68e09ec1-6cc7-48b8-981d-30f478c70276

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