CVE-2022-0080

CRITICALNVD 9.89.8—Elevated

9.8

mruby is vulnerable to Heap-based Buffer Overflow

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 44.8%
KEV: Not listed

Published

January 2, 2022

Last Modified

May 22, 2025

References (4)

security@huntrhttps://github.com/mruby/mruby/commit/28ccc664e5dcd3f9d55173e9afde77c4705a9ab6
security@huntrhttps://huntr.dev/bounties/59a70392-4864-4ce3-8e35-6ac2111d1e2e
af854a3a-2127-422b-91ae-364da2661108https://github.com/mruby/mruby/commit/28ccc664e5dcd3f9d55173e9afde77c4705a9ab6
af854a3a-2127-422b-91ae-364da2661108https://huntr.dev/bounties/59a70392-4864-4ce3-8e35-6ac2111d1e2e

Weakness Classification(1)

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

CWE-122Heap-based Buffer Overflow

Data Freshness Timeline

(refreshed 10× in last 7d / 18× 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.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 05:27 UTCEG score recompute
2026-05-26 05:27 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2022-0080?

CVE-2022-0080 is a critical vulnerability published on January 2, 2022. mruby is vulnerable to Heap-based Buffer Overflow

When was CVE-2022-0080 disclosed?

CVE-2022-0080 was first published in the National Vulnerability Database on January 2, 2022, with the most recent update on May 22, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2022-0080 actively exploited?

CVE-2022-0080 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 44.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-0080?

CVE-2022-0080 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2022-0080?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-0080, 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-2022-0080

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-0080?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same CWE)