What is CVE-2023-6270?

CVE-2023-6270 is a High severity Linux kernel vulnerability with a CVSS score of 7.0 out of 10, classified as a Use After Free flaw (CWE-416). CVE-2023-6270 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-6270?

CVE-2023-6270 has a CVSS score of 7.0 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2023-6270?

No patch is currently available for CVE-2023-6270. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2023-6270 actively exploited?

CVE-2023-6270 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/416.html

CVE-2023-6270

High

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.

Package Linux Kernel

Published 2024-01-04

Last modified 2026-03-24

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.0

out of 10

High

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-416

CVE-2023-6270 is a Use After Free vulnerability

What is Use After Free?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2023-6270 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Red Hat
https://access.redhat.com/security/cve/CVE-2023-6270

Third Party Advisory
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=2256786

Issue Tracking Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html

Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html

Third Party Advisory

Details

CVE ID CVE-2023-6270

Severity High

CVSS score 7.0 / 10

CVSS version 3.1

Published 2024-01-04

Modified 2026-03-24

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2023-6270?

CVE-2023-6270 is a High severity Linux kernel vulnerability with a CVSS score of 7.0 out of 10 , classified as an Use After Free flaw (CWE-416) . CVE-2023-6270 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-6270?

CVE-2023-6270 has a CVSS score of 7.0 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2023-6270?

No patch is currently available for CVE-2023-6270. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2023-6270 actively exploited?

No — CVE-2023-6270 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. View CWE-416 on MITRE CWE →