High 7.3Published Mar 4, 2026

CVE-2026-23236fbdev: smscufx: properly copy ioctl memory to kernelspace

Updated under an hour ago (Oct 28, 2026, 12:40 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: fbdev: smscufx: properly copy ioctl memory to kernelspace The UFX_IOCTL_REPORT_DAMAGE ioctl does not properly copy data from userspace to kernelspace, and instead directly references the memory, which can cause problems if invalid data is passed from userspace. Fix this all up by correctly copying the memory before accessing it within the kernel.

CVSS: 7.3 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/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: Modified
Record last updated: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 before 061cfeb560aa3ddc174153dbe5be9d0b55eb7248; from 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 before 6167af934f956d3ae1e06d61f45cd0d1004bbe1a; from 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 before a0321e6e58facb39fe191caa0e52ed9aab6a48fe; from 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 before 0634e8d650993602fc5b389ff7ac525f6542e141; from 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 before 52917e265aa5f848212f60fc50fc504d8ef12866; 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 builds before 1c008ad0f0d1c1523902b9cdb08e404129677bfc; from 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 before f1e91bd4efeae48b0f42caed7e8ce2e3a0d05b02; from 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 before 120adae7b42faa641179270c067864544a50ab69	CNA record
Siemens RUGGEDCOM RST2428P siemens:ruggedcom_rst2428p (from the name)	before V4.0	CISA ADP
linux linux_kernel linux:linux_kernel	from 3.2 before 5.10.251; from 5.11 before 5.15.201; from 5.16 before 6.1.164; from 6.2 before 6.6.127; from 6.7 before 6.12.74; from 6.13 before 6.18.13; from 6.19 before 6.19.3	NVD

References

References

https://git.kernel.org/stable/c/061cfeb560aa3ddc174153dbe5be9d0b55eb7248	patch
https://git.kernel.org/stable/c/6167af934f956d3ae1e06d61f45cd0d1004bbe1a	patch
https://git.kernel.org/stable/c/a0321e6e58facb39fe191caa0e52ed9aab6a48fe	patch
https://git.kernel.org/stable/c/0634e8d650993602fc5b389ff7ac525f6542e141	patch
https://git.kernel.org/stable/c/52917e265aa5f848212f60fc50fc504d8ef12866	patch
https://git.kernel.org/stable/c/1c008ad0f0d1c1523902b9cdb08e404129677bfc	patch
https://git.kernel.org/stable/c/f1e91bd4efeae48b0f42caed7e8ce2e3a0d05b02	patch
https://git.kernel.org/stable/c/120adae7b42faa641179270c067864544a50ab69	patch
https://cert-portal.siemens.com/productcert/html/ssa-253495.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.