Medium severity · published May 28, 2026
CVE-2026-46128
ipmi: Check event message buffer response for bad data
5.5
CVSS
0.1%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 3% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
2.6.12.1 before 5.10.258; 5.11 before 5.15.209; 5.16 before 6.1.175; 6.2 before 6.6.140; 6.7 before 6.12.88; 6.13 before 6.18.30; +8 more · source: NVD
LI
Linux · Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before cf1ef30c42a7079e5bad863cd01c52aa3a17c3ac; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 474e53d4397087913a5b9c9eb90fa068da4808bf; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 01f8387fa5b796f13cf50014c171f6da7abc46ea; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 2418e4b21fb1355504d095da5d5f0a210564a43d; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 7f7ada72c07a83b46045ddfeee526bd9e2e3c8f0; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 42432b579a594b66ac32e5e7b7c26e6bc578ec89; +3 more · source: vendor
SS
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem · Siemens
0 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-46128
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-46128
Patch
https://git.kernel.org/stable/c/01f8387fa5b796f13cf50014c171f6da7abc46ea
Patch
https://git.kernel.org/stable/c/2418e4b21fb1355504d095da5d5f0a210564a43d
Patch
https://git.kernel.org/stable/c/24269264c3d59a49eb09b10af2c75b14f2931482
Patch
https://git.kernel.org/stable/c/36920f30e78e69df01f9691c470b6f3ba8aebf98
Patch
https://git.kernel.org/stable/c/42432b579a594b66ac32e5e7b7c26e6bc578ec89
Patch
https://git.kernel.org/stable/c/474e53d4397087913a5b9c9eb90fa068da4808bf
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