CVE-2023-4459 MEDIUM

CVE-2023-4459: Kernel: vmxnet3: null pointer dereference in vmxnet3_rq_cleanup()

Vendor Red Hat
Product Red Hat Enterprise Linux 6
Weakness CWE-476
Published August 21, 2023
Last update November 15, 2025
View on NVD All CVEs

CVSS base score

5.5/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

A NULL pointer dereference flaw was found in vmxnet3_rq_cleanup in drivers/net/vmxnet3/vmxnet3_drv.c in the networking sub-component in vmxnet3 in the Linux Kernel. This issue may allow a local attacker with normal user privilege to cause a denial of service due to a missing sanity check during cleanup.

Key dates

02Disclosure timeline

August 21, 2023 CVE published
November 15, 2025 Record updated