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Fencer Intel
high 7.2

CVE-2022-1106 json

use after free in mrb_vm_exec in mruby/mruby

published 4y ago modified 4mo ago also EUVD-2022-24449

cvss
7.2
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 62%
public exploits
0
none known

Summary

use after free in mrb_vm_exec in GitHub repository mruby/mruby prior to 3.2.

Patch / fix

  • mruby mruby/mruby 3.2
  • mruby Alpine 3.24, Alpine 3.23, Alpine 3.22 +5 more 3.1.0-r0

alpine advisories ALPINE-CVE-2022-1106

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-2022-1106 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.

Check with Fencer

Exploit prediction

0.97% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • huntr.dev https://huntr.dev/bounties/16b9d0ea-71ed-41bc-8a88-2deb4c20be8f referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 7.2 CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
NVD 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
NVD 2.0 6.4 AV:N/AC:L/Au:N/C:P/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.