How do I check whether I am affected by CVE-2026-33568?

In the router admin UI, System/Status page, read the firmware version; TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327 is confirmed vulnerable. Also check if the admin UI answers from the internet (remote management / WAN port 80 or 8080 enabled) with an external port scan of your WAN IP.

What is the fix for CVE-2026-33568?

No fixed firmware known; Talos reports no vendor patch. Until one ships: turn off remote (WAN) web management, use a strong unique admin password, keep the admin UI on a trusted LAN only, and watch totolink.net X2000R download page for a newer build.

Who is not affected by CVE-2026-33568?

Not affected if: auth-required, other-firmware-versions.

Live › vulnerability › CVE-2026-33568

Go to dashboard

critical9.1Infrastructure

TOTOLINK X2000R router: crafted request runs OS commands as admin

Totolink X2000R firmware B20250421.1327: the boa web server's formMapDelDevice handler passes the macstr POST parameter unsanitized into a system() call in /bin/map_del_device. An attacker with admin login can run arbitrary OS commands as root on the router. CVSS 9.1 (PR:H). No vendor fix published as of Oct 2026.

Summary written from the sources below. Check the originals before acting.

CVSS 3.x

9.1

critical

scored by [email protected]

known so far5 of 6

missing: exploitation

First public: Oct 20, 2026 UTC
Last modified: Oct 23, 2026
Status: open
Known exploitation: None reported
Public exploit: None on GitHub
EPSS: not scored

First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.

Why it is critical, and not just CVSS

Likelihood → · Impact ↓

critical

high

medium

high

medium

low

medium

low

Exploited: No reports yet.
Needs login: Yes.
Needs a special setup: Not known from the sources.
Reachable from: network.
Worst case: Code runs as root on the router; traffic and devices behind it exposed.
CVSS said: 9.1. The facts above say medium; we keep the sources' critical until an analyst looks.

Who is affected

1 product

Know the next one before it finds you.

Add to Slack

Live › vulnerability › CVE-2026-33568

Go to dashboard

critical9.1Infrastructure

TOTOLINK X2000R router: crafted request runs OS commands as admin

Summary written from the sources below. Check the originals before acting.

CVSS 3.x

9.1

critical

scored by [email protected]

known so far5 of 6

missing: exploitation

First public: Oct 20, 2026 UTC
Last modified: Oct 23, 2026
Status: open
Known exploitation: None reported
Public exploit: None on GitHub
EPSS: not scored

First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.

Why it is critical, and not just CVSS

Likelihood → · Impact ↓

critical

high

medium

high

medium

low

medium

low

Exploited: No reports yet.
Needs login: Yes.
Needs a special setup: Not known from the sources.
Reachable from: network.
Worst case: Code runs as root on the router; traffic and devices behind it exposed.
CVSS said: 9.1. The facts above say medium; we keep the sources' critical until an analyst looks.

Who is affected

1 product

Know the next one before it finds you.

Add to Slack

TOTOLINK X2000R router: crafted request runs OS commands as admin

Why it is critical, and not just CVSS

Who is affected

Know the next one before it finds you.

TOTOLINK X2000R router: crafted request runs OS commands as admin

Why it is critical, and not just CVSS

Who is affected

Know the next one before it finds you.

How to check

The fix

Who had it, and when

What the sources say, verbatim

Sources