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Fencer Intel
medium 6.2

CVE-2022-0240 json

NULL Pointer Dereference in mruby/mruby

published 4y ago modified 4mo ago also EUVD-2022-15434

cvss
6.2
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 61%
public exploits
0
none known

Summary

mruby is vulnerable to NULL Pointer Dereference

Patch / fix

  • mruby mruby/mruby 3.2
  • mruby Debian 14, Debian 13, Debian 12 3.1.0-1

debian advisories DEBIAN-CVE-2022-0240

  • mruby openSUSE Tumbleweed 3.0.0-3.1

opensuse advisories openSUSE-SU-2024:11753-1

  • mruby Alpine 3.24, Alpine 3.23, Alpine 3.22 +5 more 3.1.0-r0

alpine advisories ALPINE-CVE-2022-0240

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Is CVE-2022-0240 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Exploit prediction

0.96% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • huntr.dev https://huntr.dev/bounties/5857eced-aad9-417d-864e-0bdf17226cbb referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 6.2 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • mruby mruby/mruby

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.