CVE-2022-1286

CRITICAL 9.8CVE-2022-1286 · Published 10/04/2022 · updated 17/06/2026

In short

CVE-2022-1286 is a CRITICAL (CVSS 9.8) vulnerability affecting mruby (mruby).
Chance of exploitation in the next 30 days (EPSS): 1.2%, higher than 67.8% of all vulnerabilities.
Fix: update to 3.2 or later.

Package	Affected versions	Patched versions
mruby mruby	`< 3.2`	`3.2`

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.

References

mruby/mruby commit b1d0296 · Patch
huntr.dev/bounties/f918376e-b488-4113-963d-ffe8716e4189 · Exploit

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Package

Affected versions

Patched versions

mruby

< 3.2

3.2

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