Use After Free in Mruby
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.
Vulnerability class: Use-After-Free
EPSS: 0.017 (74.6th 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 — versions 3.1.0
- Mruby Mruby/mruby — versions unspecified
Weakness classification (CWE)
References
- security@huntr.dev (x_refsource_CONFIRM, Exploit, Patch, Third Party Advisory, Issue Tracking)
- security@huntr.dev (Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2022-1212?
- CVE-2022-1212 is a critical-severity vulnerability in Mruby, classified under Use After Free. CVSS score: 9.8/10. Published 2022-04-05.
- How severe is CVE-2022-1212?
- Critical severity. CVSS v3 base score is 9.8 out of 10.