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CVE-2026-89567: Linux 6.5
CVE-2026-89567 affects azl3 kernel 6.6.157.1-1 on Azure Linux 3.0. CVSS 3.1 base score 4.7 (Microsoft Security Response Center). EPSS 0.00206 (percentile 0.09969), scored 20-Oct-2026.
Affected technology
Linux · b98dba273a0e47dbfade89c9af73c5b012a4eabb to before 6b5366ba63a58819396045ab146bd37ff9e503c6, b98dba273a0e47dbfade89c9af73c5b012a4eabb to before edf5fcd0469b7467bd5b37a79502c8d9c3257dbb, b98dba273a0e47dbfade89c9af73c5b012a4eabb to before 71c6b872c746465fa4b5def239cb296173ca8216, b98dba273a0e47dbfade89c9af73c5b012a4eabb to before c2c0fb364685b8996c357d3b050394959b29d6e0, b98dba273a0e47dbfade89c9af73c5b012a4eabb to before 15cb16496446b94e67f7abcb049b8e2c75cd3d02, 9c31bb2684f8035beca0275349d19d679b679ffb, 5fda50e262e65bd553ff777c4b280afd1495a18b, 557fda9ed70ebf8eda2620ba3d746215285a1303, 5.15.129 to before 5.16, 6.1.50 to before 6.2, 6.4.13 to before 6.5
Linux
Linux · 6.5
Linux
Component: Not specified by the source
File: fs/jbd2/checkpoint.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
- 18.9 /100 (P5)
- CVSS 3.1
- 4.7 /10 · CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H · Microsoft Security Response Center
- EPSS
- 0.00206 · percentile 0.09969 · 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-2026-89567.html