---
id: "CVE-2020-24363"
kind: "vulnerability"
aliases: ["CVE-2020-24363"]
title: "tp-link tl-wa855re firmware: TP-Link TL-WA855RE V5 20200415-rel37464 devices allow an unauthenticated attacker (on the same network) to submit a\u2026"
severity: "high"
cvss: 8.8
epss: null
exploited: true
status: "open"
category: "infrastructure"
products: [{"name": "TP-Link TL-WA855RE", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "tp-link tl-wa855re firmware", "fixed": ["200731"], "affected": "< 200731", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["exploited", "infrastructure", "self-hosted", "tp-link", "wifi-extender"]
not_affected_if: ["no-tl-wa855re-deployed"]
published_at: "2020-08-31T16:15:15+00:00"
first_seen_at: "2026-10-23T19:11:51+00:00"
updated_at: "2026-10-23T22:29:05+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2020-24363", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-24363", "first_seen_at": "2026-10-23T22:29:05+00:00"}]
---

# tp-link tl-wa855re firmware: TP-Link TL-WA855RE V5 20200415-rel37464 devices allow an unauthenticated attacker (on the same network) to submit a…

TP-Link TL-WA855RE Wi-Fi range extenders accept an unauthenticated TDDP_RESET POST request that factory-resets and reboots the device. An attacker on the same network can then set a new administrative password and take control of the device.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:TP-Link TL-WA855RE affected ? fixed ?
- vendor:tp-link tl-wa855re firmware affected < 200731 fixed 200731

## How to check

Check whether a TL-WA855RE is on your network, e.g. via the device label model number or the admin web interface.

## Fix

Discontinue use of the product, as the vendor reports it is end-of-life/end-of-service; replace it or follow vendor mitigation instructions if one is available.

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2020-24363
- 2026-10-23T22:29:05+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2020-24363

## From the sources

TP-link TL-WA855RE contains a missing authentication for critical function vulnerability. This vulnerability could allow an unauthenticated attacker (on the same network) to submit a TDDP_RESET POST request for a factory reset and reboot. The attacker can then obtain incorrect access control by setting a new administrative password. The impacted products could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.

CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_