CVE-2023-6270

Name: CVE-2023-6270
Creator: NVD / NIST
Published: 2024-01-04T17:15:08.803+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7/10EPSS 0.41%

Last modified Jun 17, 2026

CVE-2023-6270 is a high-severity vulnerability rated 7/10 on the CVSS scale. A flaw was found in the ATA over Ethernet (AoE) driver in the Linux kernel. The aoecmd_cfg_pkts() function improperly updates the refcnt on `struct net_device`, and a use-after-free can be triggered by racing between the free on the struct and the access through the `skbtxq` global queue. EPSS estimates a 0.41% chance of exploitation in the next 30 days.

Description

A flaw was found in the ATA over Ethernet (AoE) driver in the Linux kernel. The aoecmd_cfg_pkts() function improperly updates the refcnt on `struct net_device`, and a use-after-free can be triggered by racing between the free on the struct and the access through the `skbtxq` global queue. This could lead to a denial of service condition or potential code execution.

Metrics

CVSS 3.1

7/10

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

EPSS Probability

0.41%

32.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Debian	Debian Linux	10.0
Linux	Linux Kernel	< 6.9
Fedoraproject	Fedora	39

References

https://access.redhat.com/security/cve/CVE-2023-6270Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2256786Issue Tracking, Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-6270Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2256786Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlThird Party Advisory
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.htmlThird Party Advisory

Timeline

Published: Jan 4, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-6270?

How severe is CVE-2023-6270?

CVE-2023-6270 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.

How do I fix CVE-2023-6270?

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-2023-6270?

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

Scan your code now

Source: NVD / NIST