CVE-2022-1201

MEDIUMNVD 6.56.5—

6.5

NULL Pointer Dereference in mrb_vm_exec with super in GitHub repository mruby/mruby prior to 3.2. This vulnerability is capable of making the mruby interpreter crash, thus affecting the availability of the system.

CVSS v3: 6.5
EG Score: 6.5(medium)
EPSS: 32.4%
KEV: Not listed

Published

April 2, 2022

Last Modified

November 21, 2024

References (4)

security@huntrhttps://github.com/mruby/mruby/commit/00acae117da1b45b318dc36531a7b0021b8097ae
security@huntrhttps://huntr.dev/bounties/6f930add-c9d8-4870-ae56-d4bd8354703b
af854a3a-2127-422b-91ae-364da2661108https://github.com/mruby/mruby/commit/00acae117da1b45b318dc36531a7b0021b8097ae
af854a3a-2127-422b-91ae-364da2661108https://huntr.dev/bounties/6f930add-c9d8-4870-ae56-d4bd8354703b

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-476NULL Pointer Dereference

Data Freshness Timeline

(refreshed 11× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-05 06:09 UTCepss_batch
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2026-06-04 13:11 UTCepss_batch
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Frequently asked(5)

What is CVE-2022-1201?

CVE-2022-1201 is a medium vulnerability published on April 2, 2022. NULL Pointer Dereference in mrbvmexec with super in GitHub repository mruby/mruby prior to 3.2. This vulnerability is capable of making the mruby interpreter crash, thus affecting the availability of the system.

When was CVE-2022-1201 disclosed?

CVE-2022-1201 was first published in the National Vulnerability Database on April 2, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2022-1201 actively exploited?

CVE-2022-1201 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 32.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-1201?

CVE-2022-1201 has a CVSS v3 base score of 6.5 (NVD).

How do I remediate CVE-2022-1201?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-1201, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2022-1201

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-1201?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same CWE)