What is CVE-2022-1286?

CVE-2022-1286 is a critical-severity vulnerability in Mruby, classified under Heap-based Buffer Overflow. CVSS score: 9.8/10. Published 2022-04-10.

How severe is CVE-2022-1286?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Mruby

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.

Vulnerability class: Buffer Overflow

EPSS: 0.011 (62.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Mruby
Mruby Mruby/mruby — versions unspecified

Weakness classification (CWE)

CWE-122 — Heap-based Buffer Overflow
CWE-787 — Out-of-bounds Write

References

security@huntr.dev (x_refsource_CONFIRM, Exploit, Third Party Advisory)
security@huntr.dev (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2022-1286?: CVE-2022-1286 is a critical-severity vulnerability in Mruby, classified under Heap-based Buffer Overflow. CVSS score: 9.8/10. Published 2022-04-10.
How severe is CVE-2022-1286?: Critical severity. CVSS v3 base score is 9.8 out of 10.