---
id: CVE-2025-9577
title: A security flaw has been discovered in TOTOLINK X2000R up to 2.0.0
summary: >-
  A security flaw has been discovered in TOTOLINK X2000R up to 2.0.0. The
  affected element is an unknown function of the file /etc/shadow.sample of the
  component Administrative Interface. The manipulation results in use of default
  credenti…
severity: low
cvss: 2.5
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-1392
vendor: totolink
product: x2000r_firmware
affected:
  - x2000r_firmware = 2.0.0-b20230727.1043.web
published: '2025-08-28'
updated: '2026-07-25'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-9577'
references:
  - url: >-
      https://github.com/XXRicardo/iot-cve/blob/main/TOLOLINK/X2000R-Gh-V2.0.0.md
    label: cna@vuldb.com
  - url: >-
      https://github.com/XXRicardo/iot-cve/blob/main/TOLOLINK/X2000R-Gh-V2.0.0.md#steps-to-reproduce
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?ctiid.321691'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?id.321691'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?submit.636069'
    label: cna@vuldb.com
  - url: 'https://www.totolink.net/'
    label: cna@vuldb.com
  - url: >-
      https://github.com/XXRicardo/iot-cve/blob/main/TOLOLINK/X2000R-Gh-V2.0.0.md
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: >-
      https://github.com/XXRicardo/iot-cve/blob/main/TOLOLINK/X2000R-Gh-V2.0.0.md#steps-to-reproduce
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00214
epssPercentile: 0.12013
ingestedAt: '2026-07-25T10:53:52.904Z'
---

## Overview

A security flaw has been discovered in TOTOLINK X2000R up to 2.0.0. The affected element is an unknown function of the file /etc/shadow.sample of the component Administrative Interface. The manipulation results in use of default credentials. Attacking locally is a requirement. Attacks of this nature are highly complex. The exploitability is described as difficult. The exploit has been released to the public and may be exploited.

## Affected

- `x2000r_firmware = 2.0.0-b20230727.1043.web`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.