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CriticalVulnerabilityCVE-2026-9814updated 25 Oct 2026, 15:24 UTC

TOTOLINK X2000R router can run attacker commands via web setup page

Someone who can log in to this router's web admin page can send a specially built request that makes the router run commands the attacker chose. That can give them full control of the device.

Official, 2 sources
SeverityCriticalCVSS 9.1 of 10
Being exploited?UnclearNo reports either way yet
Fix available?UnclearNo fixed version published in the sources yet
How sure is this?Official, 2 sourcesBacked by an official source

How the attack works simplified

  1. 1Attacker logs inNeeds valid admin access to the web page
  2. 2Sends crafted requestTargets the newPass setup function
  3. 3Router runs commandInput reaches the OS shell unchecked
  4. 4Code executesAttacker runs arbitrary commands on device
  5. ResultAttacker takes control of the router

What happened

An OS command injection flaw exists in the boa formWizard newPass function of the TOTOLINK X2000R, where crafted HTTP requests are passed to the system shell; an authenticated attacker can achieve arbitrary code execution.

Why it is dangerous: An attacker who gets into the router can take over the device, which sits at the edge of the network and can be used to intercept or redirect traffic for everyone behind it.

Are you affected?

You are affected if you run TOTOLINK X2000R with firmware TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327 and its web management interface is reachable by untrusted users.

TOTOLINK X2000R, firmware version TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327

What to do

  1. Check whether your router is a TOTOLINK X2000R on firmware B20250421.1327 and, if so, check TOTOLINK's site for an updated firmware.
  2. Turn off remote access to the router's admin page and do not expose it to the internet.
  3. Change the admin password to a strong, unique one and limit who on your network can reach the admin page.

Timeline

  1. 20 Oct 2026, 21:17 UTC
    Publicly disclosed
  2. 20 Oct 2026, 21:17 UTC
    Reported by NVD · NVD
  3. 25 Oct 2026, 15:24 UTC
    GitHub Advisory reported on it · GitHub Advisory

Sources 2 reports, oldest first

Official vendor, government CERT or advisory database

Technical details

ID
CVE-2026-9814 · GHSA-8j97-qf5q-6qpc
CVSS
9.1 / 10
EPSS
1.6% chance of exploitation within 30 days
Disclosed
20 Oct 2026, 21:17 UTC
On Zero Radar
before the radar started
Last change
25 Oct 2026, 15:24 UTC

The plain-language parts and the attack diagram were written by an AI model (anthropic/claude-haiku-5.5) from the sources above. Facts like versions, exploitation and dates come from the sources themselves. How Zero Radar works

TOTOLINK X2000R router can run attacker commands via web setup page · Zero Radar