CVE-2021-46023: Mruby

High severity, CVSS 7.5. EPSS: 0.8% chance of exploitation in the next 30 days.

An Untrusted Pointer Dereference was discovered in function mrb_vm_exec in mruby before 3.1.0-rc. The vulnerability causes a segmentation fault and application crash.

Affected products

• Mruby Mruby: before 3.1.0 (fixed in 3.1.0)

Published 2023-02-14. Last modified 2026-06-17.