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CVE-2026-89631: Linux 2.6.30
CVE-2026-89631 affects azl3 kernel 6.6.150.1-1 on Azure Linux 3.0. CVSS 3.1 base score 9.1 (msrc). EPSS 0.00442 (percentile 0.36648), scored 13-Oct-2026.
Affected technology
Linux · cc20c031bb067eb3280a1c4b5c42295093e24863 to before 3be89e8039a85fa3b6cd5f9dcc4c1459eb356c2d, cc20c031bb067eb3280a1c4b5c42295093e24863 to before 411e484fe71a7f1028de617447edad9cb6d9d68a, cc20c031bb067eb3280a1c4b5c42295093e24863 to before 65deb18359341141d37dc86fc7853511be3c87a7
Linux
Linux · 2.6.30
Linux
Component: Not specified by the source
File: fs/smb/client/cifssmb.c, fs/smb/client/trace.h
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 9.1/10) rates confidentiality and availability impact as high; integrity impact as none. 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
- 36.5 /100 (P4)
- CVSS 3.1
- 9.1 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H · Source advisory
- EPSS
- 0.00442 · percentile 0.36894 · 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-2026-89631.html