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CVE-2026-89740: Linux 2.6.27
CVE-2026-89740 affects azl3 kernel 6.6.150.1-1 on Azure Linux 3.0. CVSS 3.1 base score 5.7 (Microsoft Security Response Center). EPSS 0.00206 (percentile 0.09976), scored 20-Oct-2026.
Affected technology
Linux · dbff4e9ea2e83fda89143389bfb229cb29425a32 to before abc17fd508a511669997e48f8b014d8aa043abdf, dbff4e9ea2e83fda89143389bfb229cb29425a32 to before 681696ae9e4a28bdf54893c807dfe4a6c08e30a5, dbff4e9ea2e83fda89143389bfb229cb29425a32 to before 28b932202fcdbeb2ef58d89ce4363f480433c234, dbff4e9ea2e83fda89143389bfb229cb29425a32 to before 7429dce56a73bc080a8c072edb167106f73a08ae, dbff4e9ea2e83fda89143389bfb229cb29425a32 to before 8b0b29fdcb47907ae0296b8fe829e918e05e300f
Linux
Linux · 2.6.27
Linux
Component: Not specified by the source
File: drivers/tty/serial/imx.c
Attack conditions (Microsoft Security Response Center, CVSS 3.1): Local · High 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
- 22.9 /100 (P4)
- CVSS 3.1
- 5.7 /10 · CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H · Microsoft Security Response Center
- EPSS
- 0.00206 · percentile 0.09976 · 2026-10-20
- KEV
- no
Provenance
- FIRST EPSS daily exploit-probability · Source record · observed 2026-10-20 16:56:29.772392+00:00 UTC
- GitHub Advisory Database · Source record · observed 2026-10-21 16:14:50.830645+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 2026-10-21 16:09:05.633125+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-89740.html