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CVE-2026-23247: linux kernel 4.10.14, 4.11; +1 more affected products
CVE-2026-23247 affects azl3 kernel 6.6.126.1-1 on Azure Linux 3.0. CVSS 3.1 base score 5.5 (MEDIUM, NVD). EPSS 0.00123 (percentile 0.01865), scored 20-Oct-2026.
Affected technology
linux kernel · after 4.11 (exclusive), before 6.18.17 (exclusive)
linux
linux kernel · from 6.19 (inclusive), before 6.19.7 (exclusive)
linux
linux kernel · 4.10.14
linux
linux kernel · 4.11
linux
linux kernel · 4.11 · update rc6
linux
linux kernel · 4.11 · update rc7
linux
linux kernel · 4.11 · update rc8
linux
linux kernel · 7.0 · update rc1
linux
linux kernel · 7.0 · update rc2
linux
Linux · 28ee1b746f493b7c62347d714f58fbf4f70df4f0 to before e873e8c16b2fb743a381a9e59c108e63512301ec, 28ee1b746f493b7c62347d714f58fbf4f70df4f0 to before 5da5662181ef8a251e3ba564903002c2e87de452, 28ee1b746f493b7c62347d714f58fbf4f70df4f0 to before eae2f14ab2efccdb7480fae7d42c4b0116ef8805, 28ee1b746f493b7c62347d714f58fbf4f70df4f0 to before 46e5b0d7cf55821527adea471ffe52a5afbd9caf, 28ee1b746f493b7c62347d714f58fbf4f70df4f0 to before 165573e41f2f66ef98940cf65f838b2cb575d9d1, 443fac9f2618b93cbc5ab068dc594530236b3a23, 4.10.14 to before 4.11
Linux
Linux · 4.11
Linux
Component: Not specified by the source
File: include/net/secure_seq.h, include/net/tcp.h, net/core/secure_seq.c, net/ipv4/syncookies.c, net/ipv4/tcp_input.c, net/ipv4/tcp_ipv4.c, net/ipv6/syncookies.c, net/ipv6/tcp_ipv6.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
- 0.00123 · percentile 0.01865 · 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-2026-23247.html