CVE-2026-38973

mrubyc through release3.4.1 was found to contain an out-of-bounds read in builtin missing-method lookup inside mrbc_find_method()

Medium · published July 6, 2026

CVSS v3.1
4.4
EPSS
0%
Percentile
5.4
In the wild
Unconfirmed
What it is

mrubyc through release3.4.1 was found to contain an out-of-bounds read in builtin missing-method lookup inside mrbc_find_method().

The record
Technical detail
CVSS v3.1
4.4 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00164 · 5.4th percentile
Published
2026-07-06T00:00Z
EPSS history
Timeline
  • 06 JUL 00:00Z
    mrubyc through release3.4.1 was found to contain an out-of-bounds read in builtin missing-method lookup inside mrbc_find_method()
    cvelistv5