Zero Radar
← feed
CriticalVulnerabilityCVE-2026-114575updated 25 Oct 2026, 16:35 UTC

TOTOLINK A950RG router can be taken over remotely via a crafted input field

A flaw in this TOTOLINK router lets an outside attacker send a specially crafted request that makes the device run commands they choose. Anyone on the internet may be able to reach it.

Official, 2 sources
SeverityCriticalCVSS 9.3 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. 1Remote attackerSends a crafted request to the router
  2. 2Internet requestReaches the exposed admin interface
  3. 3Router firmwareFileMd5 value is not sanitized
  4. 4Command runsInjected OS command executes on device
  5. ResultAttacker controls the router

What happened

The UploadCustomModule function in lib/cste_modules/product.so on TOTOLINK A950RG firmware 4.1.2cu.5268_B20221104 does not properly handle the FileMd5 argument, allowing OS command injection that can be triggered remotely.

Why it is dangerous: An attacker who succeeds can control the router, potentially intercepting or changing traffic and reaching other devices on the home or office network. Anyone running this exact firmware version with remote access exposed is at risk.

Are you affected?

You are affected if you run TOTOLINK A950RG with firmware 4.1.2cu.5268_B20221104.

TOTOLINK A950RG, firmware 4.1.2cu.5268_B20221104

What to do

  1. Check whether your TOTOLINK A950RG runs firmware 4.1.2cu.5268_B20221104 and check the vendor site for a newer firmware.
  2. Install any available firmware update from TOTOLINK as soon as it is released.
  3. Turn off remote management and block access to the router's admin interface from the internet until a fix is confirmed.
  4. Change the router admin password to a strong unique one.

Timeline

  1. 22 Oct 2026, 01:16 UTC
    Publicly disclosed
  2. 22 Oct 2026, 01:16 UTC
    Reported by NVD · NVD
  3. 25 Oct 2026, 16:35 UTC
    GitHub Advisory reported on it · GitHub Advisory

Sources 2 reports, oldest first

Official vendor, government CERT or advisory database

Technical details

ID
CVE-2026-114575 · GHSA-8wp9-f64g-53hq
CVSS
9.3 / 10
EPSS
2.2% chance of exploitation within 30 days
Disclosed
22 Oct 2026, 01:16 UTC
On Zero Radar
before the radar started
Last change
25 Oct 2026, 16:35 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 A950RG router can be taken over remotely via a crafted input field · Zero Radar