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CriticalVulnerabilityCVE-2026-10131updated 25 Oct 2026, 15:22 UTC

TOTOLINK X2000R router can run attacker commands via password setup page

A flaw in this TOTOLINK router's web admin lets someone who can log in send a specially crafted web request that makes the router run commands they choose. That could 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 credentials
  2. 2Crafted HTTP requestSent to password setup handler
  3. 3Command injectionInput reaches OS command in boa
  4. 4Router code executionAttacker runs commands on device
  5. ResultAttacker controls the router

What happened

An OS command injection flaw in the boa formPasswordSetup handler of TOTOLINK X2000R firmware allows arbitrary code execution via a crafted HTTP request, requiring authentication.

Why it is dangerous: An attacker who controls the router can read or redirect traffic, change settings, and reach devices on the home or office network. Anyone running this router with its web admin reachable is at risk.

Are you affected?

You are affected if you run TOTOLINK X2000R with firmware TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327.

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

What to do

  1. Check the router's firmware version in its admin page and compare it to the affected version.
  2. Install any firmware update from TOTOLINK; no fixed version is listed in the sources yet.
  3. Limit access to the router's web admin to trusted devices and change the admin password to a strong unique one.
  4. Disable remote administration from the internet if it is turned on.

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, 15:22 UTC
    GitHub Advisory reported on it · GitHub Advisory

Sources 2 reports, oldest first

Official vendor, government CERT or advisory database

Technical details

ID
CVE-2026-10131 · GHSA-g7x5-7rwj-vqcc
CVSS
9.1 / 10
EPSS
1.4% 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, 15:22 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 password setup page · Zero Radar