CVE-2025-40080
Linux Kernel vulnerability analysis and mitigation

Overview

CVE-2025-40080 is a vulnerability in the Linux kernel's NBD (Network Block Device) component that restricts sockets to TCP and UDP protocols. The vulnerability was discovered and disclosed on October 28, 2025 (Red Hat Security).

Technical details

The vulnerability has been assigned a CVSS v3.1 base score of 7.0 (High) with the following vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H. This indicates that the vulnerability requires local access, has high attack complexity, requires low privileges, needs no user interaction, has an unchanged scope, and can result in high impacts to confidentiality, integrity, and availability (Red Hat Security).

Impact

The vulnerability affects multiple versions of Red Hat Enterprise Linux, including versions 8, 9, and 10, specifically impacting their kernel components. Both standard and real-time (RT) kernel variants are affected (Red Hat Security).

Additional resources


SourceThis report was generated using AI

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Published date

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