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CVE-2026-90265: Linux 5.16
CVE-2026-90265 affects azl3 kernel 6.6.157.1-1 on Azure Linux 3.0. CVSS 3.1 base score 5.5 (Microsoft Security Response Center). EPSS 0.00206 (percentile 0.10129), scored 20-Oct-2026.
Affected technology
Linux · 22b398eeeed43d51e85b1008e51bf9663ac1f491 to before c97277aa6ce8ac725642aced0fe20cd8d31f6e09, 22b398eeeed43d51e85b1008e51bf9663ac1f491 to before 37614074596827a5f292243673b699c90ff63e7d, 22b398eeeed43d51e85b1008e51bf9663ac1f491 to before a9701dd06e82c345fe70debdf8835b7eb5000c59, 22b398eeeed43d51e85b1008e51bf9663ac1f491 to before ac916391e1c70801649f7d6f85014f687983bc33, 22b398eeeed43d51e85b1008e51bf9663ac1f491 to before ba02eab28041f9a4bbe9fc90c7249644fef6de0f
Linux
Linux · 5.16
Linux
Component: Not specified by the source
File: fs/btrfs/defrag.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 and integrity impact as none; availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.
- Product
- azl3 kernel 6.6.157.1-1 on Azure Linux 3.0
- CCR priority
- 22.1 /100 (P4)
- CVSS 3.1
- 5.5 /10 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U · Microsoft Security Response Center
- EPSS
- 0.00206 · percentile 0.10129 · 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-2026-90265.html