CVE-2026-45930 Details
Description
In the Linux kernel, the following vulnerability has been resolved: net: mctp: ensure our nlmsg responses are initialised Syed Faraz Abrar (@farazsth98) from Zellic, and Pumpkin (@u1f383) from DEVCORE Research Team working with Trend Micro Zero Day Initiative report that a RTM_GETNEIGH will return uninitalised data in the pad bytes of the ndmsg data. Ensure we're initialising the netlink data to zero, in the link, addr and neigh response messages.
A vulnerability in the Linux kernel's handling of netlink messages for the Management Component Transport Protocol (MCTP) has been addressed. This issue, present in the stable Linux kernel, involved the RTM_GETNEIGH command returning uninitialized data in the pad bytes of the neighbor discovery message. The vulnerability arose because the netlink response messages were not properly initialized, potentially leading to the disclosure of garbage data. The issue has been fixed by ensuring that the netlink data is cleared before being populated with valid information.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/54ed418de62a148a655262da682a050fa05f7924 | kernel.org | Patch |
| https://git.kernel.org/stable/c/6fb6a97c86abb8592158088afaea0eb464cf9de1 | kernel.org | Patch |
| https://git.kernel.org/stable/c/963537a26fd892f7e414a091f807b44aeee97a7d | kernel.org | Patch |
| https://git.kernel.org/stable/c/976612471a9e6ead6ceffc241e4d0a1aac90b36a | kernel.org | Patch |
| https://git.kernel.org/stable/c/a6a9bc544b675d8b5180f2718ec985ad267b5cbf | kernel.org | Patch |
| https://git.kernel.org/stable/c/b37da3ac099e145bcd3be82c745a8d335772e3af | kernel.org | Patch |
| https://git.kernel.org/stable/c/c4f840437e7641764de15f2de951ac8335d641f1 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 5.15, < 5.15.210 >= 5.16, < 6.1.176 >= 6.2, < 6.6.143 >= 6.7, < 6.12.93 >= 6.13, < 6.18.35 >= 6.19, < 6.19.4 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 25, 2026 | Initial Analysis | [email protected] |
| Jun 19, 2026 | CVE Modified | kernel.org |
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 9, 2026 | CVE Modified | kernel.org |
| May 27, 2026 | New CVE Received | kernel.org |