CVE Database · CVE-2023-0266
CVSS v3.1
7.9
EPSS
3.70%
Published
Jan 30, 2023
Modified
Oct 24, 2025
CISA Known Exploited Vulnerability
Added: 2023-03-30 · Due: 2023-04-20
Apply updates per vendor instructions.
Public PoC / Exploit (2)
All weaponized →Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.
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
CVSS Vector
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:HWeaknesses (CWE)
Affected Products (7)
References (9)