Vulnerability Database

309,136

Total vulnerabilities in the database

CVE-2022-1212

Use-After-Free in str_escape in mruby/mruby in GitHub repository mruby/mruby prior to 3.2. Possible arbitrary code execution if being exploited.

  • Published: Apr 5, 2022
  • Updated: Nov 16, 2025
  • CVE: CVE-2022-1212
  • Severity: Critical
  • Exploit:

CVSS v3:

  • Severity: Critical
  • Score: 9.8
  • AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/Au:N/C:P/I:P/A:P

CWEs:

Software From Fixed in
mruby / mruby - 3.0.0.x
mruby / mruby 3.1.0-rc2 3.1.0-rc2.x
mruby / mruby 3.1.0-rc 3.1.0-rc.x