VULNERABILITY INTELLIGENCE

CVE-2020-27786

CVSS score7.8 HIGH
EPSS probability1.67%
CISA KEVNot currently listed
Published2020-12-11
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

A flaw was found in the Linux kernel’s implementation of MIDI, where an attacker with a local account and the permissions to issue ioctl commands to midi devices could trigger a use-after-free issue. A write to this specific memory while freed and before use causes the flow of execution to change and possibly allow for memory corruption or privilege escalation. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Weakness classification

  • secalert@redhat.com: CWE-416

Primary references