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CVE-2026-90389: Linux 5.8
CVE-2026-90389 affects azl3 kernel 6.6.150.1-1 on Azure Linux 3.0. CVSS 3.1 base score 7.1 (Microsoft Security Response Center). EPSS 0.002 (percentile 0.09113), scored 13-Oct-2026.
Affected technology
Linux · 78f57ef9d50a75326da73d352d7c27828495229a to before 72ebfdf507ede7d7f2b7ca0a5634811a0e4bf045, 78f57ef9d50a75326da73d352d7c27828495229a to before 28fdea874f68cac6c36651b1fc7272fd2199c48d, 78f57ef9d50a75326da73d352d7c27828495229a to before a58923756b0f8e71032070c23ae0b167e46731da, 78f57ef9d50a75326da73d352d7c27828495229a to before bace2010dd7ac07bc980575afb135c406730a7fe
Linux
Linux · 5.8
Linux
Component: Not specified by the source
File: drivers/md/md-bitmap.c, drivers/md/md.c, drivers/md/md.h, drivers/md/raid5.c
Attack conditions (Microsoft Security Response Center, CVSS 3.1): Local · Low privileges required · No user interaction required
What an attacker can do
Microsoft Security Response Center’s CVSS 3.1 assessment rates confidentiality impact as none; integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.
- Product
- azl3 kernel 6.6.150.1-1 on Azure Linux 3.0
- CCR priority
- 28.4 /100 (P4)
- CVSS 3.1
- 7.1 /10 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:U · Microsoft Security Response Center
- EPSS
- 0.002 · percentile 0.09155 · 2026-10-17
- KEV
- no
Provenance
- FIRST EPSS daily exploit-probability · Source record · observed 2026-10-18 12:55:59.341568+00:00 UTC
- Microsoft MSRC Security Update Guide (CVRF) · Source record · observed 2026-10-04 07:08:49.022374+00:00 UTC
- NVD CVE API 2.0 · Source record · observed 2026-10-19 10:33:46.008150+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-90389.html