Medium 5.5Published May 28, 2026

CVE-2026-46128ipmi: Check event message buffer response for bad data

Updated under an hour ago (Oct 27, 2026, 5:40 PM ET)

Does this affect you?

It affects Linux and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Linux

Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: ipmi: Check event message buffer response for bad data The event message buffer response data size got checked later when processing, but check it right after the response comes back. It appears some BMCs may return an empty message instead of an error when fetching events. There are apparently some new BMCs that make this error, so we need to compensate.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Undergoing Analysis
Record last updated: Oct 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before cf1ef30c42a7079e5bad863cd01c52aa3a17c3ac; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 474e53d4397087913a5b9c9eb90fa068da4808bf; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 01f8387fa5b796f13cf50014c171f6da7abc46ea; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 2418e4b21fb1355504d095da5d5f0a210564a43d; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 7f7ada72c07a83b46045ddfeee526bd9e2e3c8f0; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 42432b579a594b66ac32e5e7b7c26e6bc578ec89; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 24269264c3d59a49eb09b10af2c75b14f2931482; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 36920f30e78e69df01f9691c470b6f3ba8aebf98	CNA record
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name)	all versions	CISA ADP
linux linux_kernel linux:linux_kernel	from 2.6.12.1 before 5.10.258; from 5.11 before 5.15.209; from 5.16 before 6.1.175; from 6.2 before 6.6.140; from 6.7 before 6.12.88; from 6.13 before 6.18.30; from 6.19 before 7.0.7; 2.6.12; and 6 more ranges	NVD

References

References

https://git.kernel.org/stable/c/cf1ef30c42a7079e5bad863cd01c52aa3a17c3ac	patch
https://git.kernel.org/stable/c/474e53d4397087913a5b9c9eb90fa068da4808bf	patch
https://git.kernel.org/stable/c/01f8387fa5b796f13cf50014c171f6da7abc46ea	patch
https://git.kernel.org/stable/c/2418e4b21fb1355504d095da5d5f0a210564a43d	patch
https://git.kernel.org/stable/c/7f7ada72c07a83b46045ddfeee526bd9e2e3c8f0	patch
https://git.kernel.org/stable/c/42432b579a594b66ac32e5e7b7c26e6bc578ec89	patch
https://git.kernel.org/stable/c/24269264c3d59a49eb09b10af2c75b14f2931482	patch
https://git.kernel.org/stable/c/36920f30e78e69df01f9691c470b6f3ba8aebf98	patch
https://cert-portal.siemens.com/productcert/html/ssa-784472.html

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.