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...
- Published
- May 8, 2023
- Updated
- Oct 14, 2026
- Assigning CNA
- mitre
- Evidence observed
- Aug 7, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HModerate · next 30 days
- Percentile
- 96.4%
- Model date
- Oct 17, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
CVE-2023-32233: Linux内核中的安全漏洞
Use-After-Free in Netfilter nf_tables when processing batch requests CVE-2023-32233
- CVE-2023-32233Exploit
Linux kernel privilege escalation exploit for CVE-2023-32233 using nft_quota UAF, ROP chain, and modprobe_path overwrite to gain root on kernels <5.16.
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