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CVE-2023-5178

HighPublished

Kernel: use after free in nvmet_tcp_free_crypto in nvme

Published: Nov 1, 2023
Updated: Mar 24, 2026
Assigning CNA: redhat
Evidence observed: Aug 8, 2026

Primary CVSS

8.8/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

9.1%

Low · next 30 days

Percentile: 95.1%
Model date: Sep 21, 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

A use-after-free vulnerability was found in drivers/nvme/target/tcp.c` in `nvmet_tcp_free_crypto` due to a logical bug in the NVMe/TCP subsystem in the Linux kernel. This issue may allow a malicious user to cause a use-after-free and double-free problem, which may permit remote code execution or lead to local privilege escalation.

Sources

CVE-2023-5178Exploit
Exploit for CVE-2023-5178

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