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CVE-2020-24363

8.8, high Known exploited

TP-link TL-WA855RE Missing Authentication for Critical Function Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab) CISA KEV catalogue (opens in a new tab)
CVSS
8.8, high high CVSS v3.1
EPSS, next 30 days
22% higher than 97.6% of scored CVEs
Exploitation
Confirmed in the wild
Published
31 Aug 20206 years ago

Known exploited

CISA added this to the Known Exploited Vulnerabilities Catalog on 2 Sept 2025. US federal agencies had to remediate by 23 Sept 2025, a deadline that has passed.

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.

Description

TP-Link TL-WA855RE V5 20200415-rel37464 devices 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.

Details

Vendor
TP-Link
Product
Tl-wa855re Firmware
Weakness
CWE-306 (opens in a new tab)
Status
Analyzed
Updated
17 Jun 2026
Assigner
cve@mitre.org

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References 4

Advisories 2

Other references 2

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other TP-Link CVEs

Every TP-Link CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2025-9377 TP-Link Archer C7(EU) and TL-WR841N/ND(MS) OS Command Injection Vulnerability KEV EPSS 38% 7.2, high
  • CVE-2023-50224 TP-Link TL-WR841N Authentication Bypass by Spoofing Vulnerability KEV EPSS 20% 6.5, medium
  • CVE-2023-33538 TP-Link Multiple Routers Command Injection Vulnerability KEV EPSS 42% 8.8, high
  • CVE-2023-1389 TP-Link Archer AX-21 Command Injection Vulnerability KEV EPSS 100% 8.8, high
  • CVE-2015-3035 TP-Link Multiple Archer Devices Directory Traversal Vulnerability KEV EPSS 84% 7.5, high

Beyond this page

Is CVE-2020-24363 in your network?

This page tells you how dangerous CVE-2020-24363 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

CVE-2020-24363 is in the CISA catalogue of exploited vulnerabilities: attackers are already exploiting it.

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  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.