CVE-2023-32233
CVSS v3
7.8
HIGH
EPSS Score
13.0 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
In the Linux kernel through 6.3.1, a use-after-free in Netfilter nf_tables when processing batch requests can be abused to perform arbitrary read and write operations on kernel memory. Unprivileged local users can obtain root privileges. This occurs because anonymous sets are mishandled.
Technical details
- Published
- 2023-05-08
Frequently asked questions
What is CVE-2023-32233?
In the Linux kernel through 6.3.1, a use-after-free in Netfilter nf_tables when processing batch requests can be abused to perform arbitrary read and write operations on kernel memory. Unprivileged local users can obtain root privileges. This occurs because anonymous sets are mishandled.
Is CVE-2023-32233 actively exploited?
Active exploitation of CVE-2023-32233 has not been confirmed. Its EPSS score was 13.0% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2023-32233?
CVE-2023-32233 has a CVSS v3 base score of 7.8 (HIGH severity).
Is CVE-2023-32233 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.
No credit card required · 500 free checks/month · Free API key
Other 2023 vulnerabilities worth triaging
Ranked by exploit probability (EPSS).