CVE-2022-0646

7.8 HIGH 0.4% exploit odds Fix listed

What it is

A flaw use after free in the Linux kernel Management Component Transport Protocol (MCTP) subsystem was found in the way user triggers cancel_work_sync after the unregister_netdev during removing device. A local user could use this flaw to crash the system or escalate their privileges on the system. It is actual from Linux Kernel 5.17-rc1 (when mctp-serial.c introduced) till 5.17-rc5.

At a glance

Exploitability: Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
Exploit odds: 0.4% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2022-02-18 18:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 04:20 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.4% in the next 30 days (EPSS).
Severity: 7.8 HIGH (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2022-02-18 18:15 UTC
Last modified: 2026-06-17 04:20 UTC
Exploit probability: 0.4% · EPSS, next 30 days
Weakness: CWE-459
Record status: Modified

Affected

Linux Kernel 5.17
Netapp h410c Firmware
Netapp h300s Firmware
Netapp h500s Firmware
Netapp h700s Firmware
Netapp h300e Firmware
Netapp h500e Firmware
Netapp h700e Firmware

Attack profile CVSS 3.1 · 7.8

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

Raw vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-2022-0646.md and follow it. Check whether this project is affected by CVE-2022-0646. 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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Fix and advisories

References

NVD record · CVE.org record