HIGH CISA KEV

CVE-2023-0266

CVSS v3

7

HIGH

EPSS Score

0.1%

exploit probability

CISA KEV

Yes

known exploited

Exploitation

—

SSVC status

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

CISA Known Exploited Vulnerability

Date Added
3/30/2023
Patch Due Date
4/20/2023
Ransomware Use
Unknown

Technical details

Published
1/30/2023

Frequently asked questions

What is CVE-2023-0266?

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

Is CVE-2023-0266 actively exploited?

Yes. CVE-2023-0266 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 4/20/2023.

What is the CVSS score for CVE-2023-0266?

CVE-2023-0266 has a CVSS v3 base score of 7 (HIGH severity).

Is CVE-2023-0266 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

Check an IPSearch CVEs

Other 2023 vulnerabilities worth triaging

Ranked by exploit probability (EPSS).

Back to CVE Database