What is CVE-2022-0481?

CVE-2022-0481 is a high-severity vulnerability in Mruby, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2022-02-04.

How severe is CVE-2022-0481?

High severity. CVSS v3 base score is 7.5 out of 10.

NULL pointer dereference in Mruby

CVE-2022-0481

NULL Pointer Dereference in Homebrew mruby prior to 3.2.

Published 2022-02-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.009 (58.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Mruby
Mruby Mruby/mruby — versions unspecified

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

huntr.dev/bounties/54725c8c-87f4-41b6-878c-01d8e0ee7027 (Exploit, Third Party Advisory)
github.com/mruby/mruby/commit/ae3c99767a27f5c6c584162e2adc6a5d0eb2c54e (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2022-0481?: CVE-2022-0481 is a high-severity vulnerability in Mruby, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2022-02-04.
How severe is CVE-2022-0481?: High severity. CVSS v3 base score is 7.5 out of 10.