CVE Watch—

CVE-2023-0266

Linux Kernel Use-After-Free Vulnerability

CVSS

—

No CVSS

EPSS

3.7%

p89

KEV

YES

Mar 30, 2023

Exploit Today

0-100

Published: — · Last modified: —

EPSS · 30d

3.7%EPSS · 30 days3.7%

2026-06-302026-07-17

KEV catalog record

Product

Linux / Kernel

Vulnerability

Linux Kernel Use-After-Free Vulnerability

Added to KEV

Mar 30, 2023

Remediate by

Apr 20, 2023

Known ransomware use

Summary description

Linux kernel contains a use-after-free vulnerability that allows for privilege escalation to gain ring0 access from the system user.

Required action

Apply updates per vendor instructions.

Notes

https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/queue-5.10/alsa-pcm-move-rwsem-lock-inside-snd_ctl_elem_read-to-prevent-uaf.patch?id=72783cf35e6c55bca84c4bb7b776c58152856fd4; https://nvd.nist.gov/vuln/detail/CVE-2023-0266

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