---
title: "CVE-2026-93282: Linux kernel ksmbd - Broken Access Control"
description: "Linux kernel ksmbd contains an access control vulnerability caused by improper handling of Authenticated Users ACE in DACL permission checks, letting authenticated users face incorrect access denial or unauthorized access, exploit requires authenticated session."
url: https://panop.io/threat-heartbeat/CVE-2026-93282/
---

# CVE-2026-93282 Linux kernel ksmbd - Broken Access Control

Linux kernel ksmbd contains an access control vulnerability caused by improper handling of Authenticated Users ACE in DACL permission checks, letting authenticated users face incorrect access denial or unauthorized access, exploit requires authenticated session.

CVSS base score 8.1 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.31% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-93282)

## Details

Type

Broken Access Control

Impact

Broken Access Control

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Published

24 September 2026

Updated

15 October 2026

## Vendor fix

Update to the latest Linux kernel version containing the ksmbd fix for maximum allowed access checks.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-93282](https://nvd.nist.gov/vuln/detail/CVE-2026-93282)
- [https://git.kernel.org/stable/c/35d5c59fe6b1d9fe43fb14eb384f69ee1a120f9c](https://git.kernel.org/stable/c/35d5c59fe6b1d9fe43fb14eb384f69ee1a120f9c)
- [https://git.kernel.org/stable/c/cc2f133e80eb2c4a04bfa77a2f207749fe2f516a](https://git.kernel.org/stable/c/cc2f133e80eb2c4a04bfa77a2f207749fe2f516a)
- [https://git.kernel.org/stable/c/28289d880e6d11ae7ac77b81af3312453febf939](https://git.kernel.org/stable/c/28289d880e6d11ae7ac77b81af3312453febf939)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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