---
id: CVE-2025-55895
title: >-
  TOTOLINK A3300R V17.0.0cu.557_B20221024 and N200RE V9.3.5u.6448_B20240521 and
  V9.3.5u.6437_B20230519 are vulnerable to Incorrect Access Control
summary: >-
  TOTOLINK A3300R V17.0.0cu.557_B20221024 and N200RE V9.3.5u.6448_B20240521 and
  V9.3.5u.6437_B20230519 are vulnerable to Incorrect Access Control. Attackers
  can send payloads to the interface without logging in (remote).
severity: critical
cvss: 9.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-284
vendor: totolink
product: a3300r_firmware
affected:
  - a3300r_firmware = 17.0.0cu.557_b20221024
  - n200re_firmware = 9.3.5u.6437_b20230519
published: '2025-12-15'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T13:10:00.187'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-55895'
references:
  - url: 'https://github.com/l0tk3/CVES/blob/main/CVE-2025-55895.pdf'
    label: cve@mitre.org
  - url: 'https://www.totolink.net/'
    label: cve@mitre.org
tags:
  - nvd
epss: 0.0034
epssPercentile: 0.25585
ingestedAt: '2026-10-14T13:30:58.433Z'
---

## Overview

TOTOLINK A3300R V17.0.0cu.557_B20221024 and N200RE V9.3.5u.6448_B20240521 and V9.3.5u.6437_B20230519 are vulnerable to Incorrect Access Control. Attackers can send payloads to the interface without logging in (remote).

## Affected

- `a3300r_firmware = 17.0.0cu.557_b20221024`
- `n200re_firmware = 9.3.5u.6437_b20230519`

## Remediation

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