CVE-2022-26047

Publication date 11 November 2022

Last updated 2 October 2026

Ubuntu priority

Cvss 3 Severity Score

Description

Improper input validation for some Intel(R) PROSet/Wireless WiFi, Intel vPro(R) CSME WiFi and Killer(TM) WiFi products may allow unauthenticated user to potentially enable denial of service via local access.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
linux-firmware	26.04 LTS resolute	Not affected
	25.10 questing	Ignored end of life, was needs-triage
	25.04 plucky	Ignored end of life, was needs-triage
	24.10 oracular	Ignored end of life, was needs-triage
	24.04 LTS noble	Not affected
	23.10 mantic	Ignored end of life, was needs-triage
	23.04 lunar	Ignored end of life, was needs-triage
	22.10 kinetic	Ignored end of life, was needs-triage
	22.04 LTS jammy	Vulnerable, fix deferred
	20.04 LTS focal	Needs evaluation
	18.04 LTS bionic	Needs evaluation
	16.04 LTS xenial	Needs evaluation
	14.04 LTS trusty	Needs evaluation

Notes

rodrigo-zaiden

while it is not clear in the advisory, the understanding is that this is a firmware update on the linux-firmware package, which is what being tracked here. commit tracked here as upstream commit fixing it is based on the date the advisory said it would be available: November 08, 2022.

gianz

jammy: the GA 5.15 kernel loads blobs from before the fix, and no linux-firmware update can change that. resolute: the Intel WiFi firmware ships in the linux-firmware-intel-wireless source.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
linux-firmware	Upstream: ?id=4a7

Severity score breakdown

CVSS version: CVSS v3.0

Base score 4.3 · Medium

Base metrics

Parameter	Value
Attack vector	Adjacent
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality impact	None
Integrity impact	None
Availability impact	Low

Scores

Parameter	Value
Base score	4.3 · Medium
Exploitability score	-
Impact score	-

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