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CVE-2026-80861: Linux 2.6.31
CVE-2026-80861 affects azl3 kernel 6.6.150.1-1 on Azure Linux 3.0. CVSS 3.1 base score 4.2 (Microsoft Security Response Center). EPSS 0.00161 (percentile 0.04647), scored 05-Oct-2026.
Affected technology
Linux · 66d4eadd8d067269ea8fead1a50fe87c2979a80d to before 301f4a3303b21ea959a8294518ee883710498ac2, 66d4eadd8d067269ea8fead1a50fe87c2979a80d to before 70706dbcf122940f4e3595d7ba1445004cc00074, 66d4eadd8d067269ea8fead1a50fe87c2979a80d to before c051f66b621695ad7c8438a9497d79e1f4f05edb, 66d4eadd8d067269ea8fead1a50fe87c2979a80d to before bf84c6b0264947794fa783c324a6d874ca6657d8, 66d4eadd8d067269ea8fead1a50fe87c2979a80d to before 0b31744f70c5e06cce5fb660e02d057a3b9e0e37, 66d4eadd8d067269ea8fead1a50fe87c2979a80d to before 78203d5b54a40f0e36196ebf31c9c7a380fc8811
Linux
Linux · 2.6.31
Linux
Component: Not specified by the source
File: drivers/usb/host/xhci.c
Attack conditions (Microsoft Security Response Center, CVSS 3.1): Physical access · No 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 6.6.150.1-1 on Azure Linux 3.0
- CCR priority
- 16.8 /100 (P5)
- CVSS 3.1
- 4.2 /10 · CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H · Microsoft Security Response Center
- EPSS
- 0.00161 · percentile 0.04856 · 2026-10-17
- KEV
- no
Provenance
- FIRST EPSS daily exploit-probability · Source record · observed 2026-10-18 12:55:59.341568+00:00 UTC
- GitHub Advisory Database · Source record · observed 2026-10-04 06:01:24.332572+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 2026-10-19 10:33:46.008150+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-80861.html