CVE-2021-46020: An untrusted pointer dereference in mrb_vm_exec() of mruby v3.0.0 can lead to a segmentation fault or application crash.

PriorityP430high7.5CVSS 3.1

AVNACLPRNUINSUCNINAH

EPSS

1.04%

59.9th percentile

An untrusted pointer dereference in mrb_vm_exec() of mruby v3.0.0 can lead to a segmentation fault or application crash.

Affected

5 ranges

Vendor	Product	Version range	Fixed in
debian	mruby	< mruby 3.1.0-1 (bookworm)	mruby 3.1.0-1 (bookworm)
mruby	mruby	—	—
mruby	mruby	>= 0 < 3.1.0-1	3.1.0-1
mruby	mruby	>= 0 < 3.1.0-1	3.1.0-1
mruby	mruby	>= 0 < 3.1.0-1	3.1.0-1

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P

osv7.5HIGH

vendor_debian7.5HIGH

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.