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CVE-2026-80866: Linux 5.13
CVE-2026-80866 affects azl3 kernel 6.6.157.1-1 on Azure Linux 3.0. CVSS 3.1 base score 4.1 (Microsoft Security Response Center). EPSS 0.00198 (percentile 0.08906), scored 14-Oct-2026.
Affected technology
Linux · 04c26faa51d1e2fe71cf13c45791f5174c37f986 to before 7672973957e3e20780afe5937a9fec70b72bc060, 04c26faa51d1e2fe71cf13c45791f5174c37f986 to before 522d1d950b9e3b68190a6de7534827c8dccedb73, 04c26faa51d1e2fe71cf13c45791f5174c37f986 to before c1481c94e74c955e0448ddf46b8615a44d840c1e, d1f76dfadaf8f47ed1753f97dbcbd41c16215ffa, 5195ec5e365a2a9331bfeb585b613a6e94f98dba, b9f5b7ad4ac3af006443f535b1ce7bff1d130d7d, 5.4.124 to before 5.5, 5.10.42 to before 5.11, 5.12.9 to before 5.13
Linux
Linux · 5.13
Linux
Component: Not specified by the source
File: net/tipc/core.c, net/tipc/udp_media.c
Attack conditions (Microsoft Security Response Center, CVSS 3.1): Local · High 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
- 16.4 /100 (P5)
- CVSS 3.1
- 4.1 /10 · CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H · Microsoft Security Response Center
- EPSS
- 0.00198 · percentile 0.08906 · 2026-10-14
- KEV
- no
Provenance
- FIRST EPSS daily exploit-probability · Source record · observed 2026-10-15 09:24:28.011626+00:00 UTC
- GitHub Advisory Database · Source record · observed 2026-10-15 12:39:55.759815+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 2026-10-15 11:57:11.427822+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-80866.html