CVE-2020-6839

CRITICAL

Mruby - Out-of-Bounds Write

Title source: rule
STIX 2.1

Description

In mruby 2.1.0, there is a stack-based buffer overflow in mrb_str_len_to_dbl in string.c.

References (1)

Core 1
Core References
Exploit, Third Party Advisory x_refsource_misc
https://github.com/mruby/mruby/issues/4929

Scores

CVSS v3 9.8
EPSS 0.0051
EPSS Percentile 66.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (1)
mruby/mruby 2.1.0
Published Jan 11, 2020
Tracked Since Feb 18, 2026