CVE-2023-4387

Name: CVE-2023-4387
Creator: NVD / NIST
Published: 2023-08-16T19:15:10.087+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.1/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2023-4387 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. A use-after-free flaw was found in vmxnet3_rq_alloc_rx_buf in drivers/net/vmxnet3/vmxnet3_drv.c in VMware's vmxnet3 ethernet NIC driver in the Linux Kernel. This issue could allow a local attacker to crash the system due to a double-free while cleaning up vmxnet3_rq_cleanup_all, which could also lead to a kernel information leak problem.. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

Description

A use-after-free flaw was found in vmxnet3_rq_alloc_rx_buf in drivers/net/vmxnet3/vmxnet3_drv.c in VMware's vmxnet3 ethernet NIC driver in the Linux Kernel. This issue could allow a local attacker to crash the system due to a double-free while cleaning up vmxnet3_rq_cleanup_all, which could also lead to a kernel information leak problem.

Metrics

CVSS 3.1

7.1/10

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

EPSS Probability

0.24%

15.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	>= 3.16.60, < 3.17
Linux	Linux Kernel	>= 4.4, < 4.9.316
Linux	Linux Kernel	>= 4.10, < 4.14.281
Linux	Linux Kernel	>= 4.15, < 4.19.245
Linux	Linux Kernel	>= 4.20, < 5.4.196
Linux	Linux Kernel	>= 5.5, < 5.10.118
Linux	Linux Kernel	>= 5.11, < 5.15.42
Linux	Linux Kernel	>= 5.16, < 5.17.10
Redhat	Enterprise Linux	6.0
Redhat	Enterprise Linux	7.0
Redhat	Enterprise Linux	8.0
Redhat	Enterprise Linux	9.0

References

https://access.redhat.com/errata/RHSA-2022:7683
https://access.redhat.com/errata/RHSA-2022:8267
https://access.redhat.com/security/cve/CVE-2023-4387Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2219270Issue Tracking, Third Party Advisory
https://github.com/torvalds/linux/commit/9e7fef9521e73ca8afd7da9e58c14654b02dfad8Patch
https://access.redhat.com/security/cve/CVE-2023-4387Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2219270Issue Tracking, Third Party Advisory
https://github.com/torvalds/linux/commit/9e7fef9521e73ca8afd7da9e58c14654b02dfad8Patch

Timeline

Published: Aug 16, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-4387?

How severe is CVE-2023-4387?

CVE-2023-4387 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2023-4387?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-4387?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST