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CVE-2026-45893

Last refreshed2026-10-23

Status: UPDATED  |  Advisory ID: CVE-2026-45893

Key Details

CVECVE-2026-45893
CVSS Score / Version
7.1 (High) / CVSS v3.1
Updated2026-10-21
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CVSS Prose
attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is none; availability impact is high.
Affected products
Linux Kernel
Classified as
CWE-125 (Out-of-bounds Read)

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
LinuxLinux Kernel
SubsystemsOT Supporting Infrastructure
SectorsAll Sectors

What to Know

In the Linux kernel, the following vulnerability has been resolved:

apparmor: Fix & Optimize table creation from possibly unaligned memory

Source blob may come from userspace and might be unaligned.

Try to optize the copying process by avoiding unaligned memory accesses.

- Added Fixes tag

- Added "Fix &" to description as this doesn't just optimize but fixes

a potential unaligned memory access

[jj: remove duplicate word "convert" in comment trigger checkpatch warning] (NVD)

What to Do

Monitor Linux's web page for any future patch releases.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-45893
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-45893

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