Linux KSMBD RCE Flaws

Linux kernel

Two remote code execution flaws in Linux KSMBD, rated 9.0 by Trend Micro's Zero Day Initiative, with no fix yet in the mainline kernel.

Do this now

Disable Linux KSMBD or block its network access until a mainline kernel fix is released.

First seen: 22 Oct 2026
Last update: 22 Oct 2026, 17:01 UTC
Source: news
On the menu as: Linux kernel

Check this repository for exposure to one security incident from pwned.coffee. Report first, change nothing until I say so.

## Linux KSMBD RCE Flaws
Severity: unknown. Patch status: no fix yet.
Affected: Linux kernel

Two remote code execution flaws in Linux KSMBD, rated 9.0 by Trend Micro's Zero Day Initiative, with no fix yet in the mainline kernel.

## Steps
1. This touches infrastructure (linux). Look in terraform, ansible, cloud-init, Dockerfiles and docs for the product and version we run. If it isn't in the repo, say so and list what a human should check on the box.
2. There is no fix yet. Until one ships: Two remote code execution flaws in Linux KSMBD, rated 9.0 by Trend Micro's Zero Day Initiative, with no fix yet in the mainline kernel.

## Report
A table: file, product or package, version in use, affected yes/no, exact fix. Then anything a human has to check outside the repo.

If you have the pwned.coffee MCP server (https://pwned.coffee/mcp), call lookup_cve for the latest, and check_repo with this repo's lockfiles, Dockerfiles and workflows for a full receipt.
Sources: https://thehackernews.com/2026/10/two-cvss-90-linux-ksmbd-rce-flaws.html
https://pwned.coffee/i/linux-ksmbd-rce-flaws

Receipt

Exploitation: No known exploitation
Score: No CVSS published yet: severity unknown.
Last checked: 24 Oct 2026, 17:17 UTC

Sources: KEV – CVE record – Vendor –

Sources

feeds.feedburner.com: Two CVSS 9.0 Linux KSMBD RCE Flaws Disclosed on Public Mailing Lists Before Kernel Fixes

Totalone coffee