CVE-2022-1286
CVSS v3
9.8
CRITICAL
EPSS Score
1.2 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
heap-buffer-overflow in mrb_vm_exec in mruby/mruby 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-2022-1286?
heap-buffer-overflow in mrb_vm_exec in mruby/mruby in GitHub repository mruby/mruby prior to 3.2. Possible arbitrary code execution if being exploited.
Is CVE-2022-1286 actively exploited?
Active exploitation of CVE-2022-1286 has not been confirmed. Its EPSS score was 1.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2022-1286?
CVE-2022-1286 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2022-1286 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.
No credit card required · 500 free checks/month · Free API key
Other 2022 vulnerabilities worth triaging
Ranked by exploit probability (EPSS).