CVE-2023-0590

Name: CVE-2023-0590
Creator: NVD / NIST
Published: 2023-03-23T21:15:19.15+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.7/10EPSS 0.20%

Last modified Jun 17, 2026

CVE-2023-0590 is a medium-severity vulnerability rated 4.7/10 on the CVSS scale. A use-after-free flaw was found in qdisc_graft in net/sched/sch_api.c in the Linux Kernel due to a race problem. This flaw leads to a denial of service issue. EPSS estimates a 0.20% chance of exploitation in the next 30 days.

Description

A use-after-free flaw was found in qdisc_graft in net/sched/sch_api.c in the Linux Kernel due to a race problem. This flaw leads to a denial of service issue. If patch ebda44da44f6 ("net: sched: fix race condition in qdisc_graft()") not applied yet, then kernel could be affected.

Metrics

CVSS 3.1

4.7/10

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

EPSS Probability

0.20%

9.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Linux	Linux Kernel	< 6.1	—
Linux	Linux Kernel	6.1	Rc1

References

Timeline

Published: Mar 23, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-0590?

How severe is CVE-2023-0590?

CVE-2023-0590 has a CVSS score of 4.7/10 (MEDIUM severity). The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.

How do I fix CVE-2023-0590?

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-2023-0590?

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

Scan your code now

Source: NVD / NIST