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CRITICAL

CVE-2022-1276

CVSS v3

9.8

CRITICAL

EPSS Score

1.6 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

Out-of-bounds Read in mrb_get_args in GitHub repository mruby/mruby prior to 3.2. Possible arbitrary code execution if being exploited.

Technical details

Published
2022-04-10

Frequently asked questions

What is CVE-2022-1276?

Out-of-bounds Read in mrb_get_args in GitHub repository mruby/mruby prior to 3.2. Possible arbitrary code execution if being exploited.

Is CVE-2022-1276 actively exploited?

Active exploitation of CVE-2022-1276 has not been confirmed. Its EPSS score was 1.6% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-1276?

CVE-2022-1276 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2022-1276 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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