CVE-2023-0590

4.7 MEDIUM 0.2% exploit odds No fix listed

What it is

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.

At a glance

Exploitability: Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
Exploit odds: 0.2% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2023-03-23 21:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-10-14 21:17 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.2% in the next 30 days (EPSS).
Severity: 4.7 MEDIUM (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2023-03-23 21:15 UTC
Last modified: 2026-10-14 21:17 UTC
Exploit probability: 0.2% · EPSS, next 30 days
Weakness: CWE-416 · Use after free
Record status: Modified

Affected

Linux Kernel < 6.1
Linux Kernel 6.1

Attack profile CVSS 3.1 · 4.7

Attack vector: Local
Complexity: High
Privileges needed: Low
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2023-0590.md and follow it. Check whether this project is affected by CVE-2023-0590. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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References

NVD record · CVE.org record