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CVE-2026-89653: Linux 5.15
CVE-2026-89653 affects azl3 kernel 6.6.152.1-1 on Azure Linux 3.0. CVSS 3.1 base score 9.8 (CRITICAL, Source advisory). EPSS 0.00502 (percentile 0.4157), scored 15-Oct-2026.
Affected technology
Linux · d517b3983dd3106ca92d6c5d0d09415a4a09481c to before 3740c88ca9cb2210a8dbdd55ea4cec119fbe86fe, d517b3983dd3106ca92d6c5d0d09415a4a09481c to before 8c823bbab3c24e657469a84db96902ba82d4e8bb, d517b3983dd3106ca92d6c5d0d09415a4a09481c to before c4addccd05bacbef2144b4db14853d0308a218ac, d517b3983dd3106ca92d6c5d0d09415a4a09481c to before 736adee11af36e407ed902264f8b2fb5cf94b62f, d517b3983dd3106ca92d6c5d0d09415a4a09481c to before 4d298880f82c42383b36946bafde7ccf4d804c9b, d517b3983dd3106ca92d6c5d0d09415a4a09481c to before 96c3f5fbb0d5386e7111426f047f98cec4586674, d517b3983dd3106ca92d6c5d0d09415a4a09481c to before aedc9053d909508a5f56c3f49f885fc030df4730
Linux
Linux · 5.15
Linux
Component: Not specified by the source
File: fs/ceph/mdsmap.c
Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required
What an attacker can do
Source advisory’s CVSS 3.1 assessment (base score 9.8/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.
- Product
- azl3 kernel 6.6.152.1-1 on Azure Linux 3.0
- CCR priority
- 39.3 /100 (P4)
- CVSS 3.1
- 9.8 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · Source advisory
- EPSS
- 0.00502 · percentile 0.4157 · 2026-10-15
- KEV
- no
Provenance
- FIRST EPSS daily exploit-probability · Source record · observed 2026-10-16 09:43:43.583708+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 2026-10-16 20:20:42.059737+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-89653.html