Out-of-bounds Read in N/a

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().

Vulnerability class: Buffer Overflow

EPSS: 0.002 (5.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L.

Affected products

N/a — versions n/a

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

Frequently asked questions

What is CVE-2026-38973?: CVE-2026-38973 is a medium-severity vulnerability in N/a, classified under Out-of-bounds Read. CVSS score: 4.4/10. Published 2026-07-06.
How severe is CVE-2026-38973?: Medium severity. CVSS v3 base score is 4.4 out of 10.