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CVE-2026-23259: linux kernel from 6.10 (inclusive), before 6.18.10 (exclusive), 6.19 · update rc1, 6.19 · update rc2 (+4 more affected…
CVE-2026-23259 affects azl3 kernel 6.6.126.1-1 on Azure Linux 3.0. CVSS 3.1 base score 5.5 (MEDIUM, NVD). EPSS 0.00104 (percentile 0.00965), scored 20-Oct-2026.
Affected technology
linux kernel · from 6.10 (inclusive), before 6.18.10 (exclusive)
linux
linux kernel · 6.19 · update rc1
linux
linux kernel · 6.19 · update rc2
linux
linux kernel · 6.19 · update rc3
linux
linux kernel · 6.19 · update rc4
linux
linux kernel · 6.19 · update rc5
linux
linux kernel · 6.19 · update rc6
linux
Linux · a9165b83c1937eeed1f0c731468216d6371d647f to before 41cda4c66846c3bfcdeaf28444ccabbb55e64cf1, a9165b83c1937eeed1f0c731468216d6371d647f to before 1d5f2329ab4df65c2ee011b986d8a6e05ad0f67c, a9165b83c1937eeed1f0c731468216d6371d647f to before 4b9748055457ac3a0710bf210c229d01ea1b01b9
Linux
Linux · 6.10
Linux
Component: Not specified by the source
File: io_uring/rw.c
Attack conditions (NVD, CVSS 3.1): Local · Low privileges required · No user interaction required
What an attacker can do
NVD’s CVSS 3.1 assessment (base score 5.5/10) 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 6.6.126.1-1 on Azure Linux 3.0
- CCR priority
- 22.0 /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 · NVD
- EPSS
- 0.00104 · percentile 0.00965 · 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-2026-23259.html