VULNERABILITY INTELLIGENCE

CVE-2023-0266

CVSS score7.9 HIGH

EPSS probability3.70%

CISA KEVKnown exploited vulnerability

Published2023-01-30

Last modified2026-06-17

Known Exploited Vulnerability

Linux Kernel Use-After-Free Vulnerability

Vendor / product: Linux / Kernel

Description

A use after free vulnerability exists in the ALSA PCM package in the Linux Kernel. SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 is missing locks that can be used in a use-after-free that can result in a priviledge escalation to gain ring0 access from the system user. We recommend upgrading past commit 56b88b50565cd8b946a2d00b0c83927b7ebb055e