TP-LINK TL-WA855RE V5 20200415-rel37464 Access Control POST Request missing authentication

Summaryinfo

A vulnerability classified as critical has been found in TP-LINK TL-WA855RE V5 20200415-rel37464. This affects an unknown part of the component Access Control. The manipulation as part of POST Request leads to missing authentication. This vulnerability is documented as CVE-2020-24363. The attack requires being on the local network. Additionally, an exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, has been found in TP-LINK TL-WA855RE V5 20200415-rel37464 (Router Operating System). This issue affects some unknown processing of the component Access Control. The manipulation as part of a POST Request leads to a missing authentication vulnerability. Using CWE to declare the problem leads to CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. Impacted is integrity, and availability. The summary by CVE is:

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.

The weakness was released 08/31/2020. The identification of this vulnerability is CVE-2020-24363 since 08/16/2020. Access to the local network is required for this attack to succeed. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.

The exploit is available at exploit-db.com. It is declared as attacked. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 09/02/2025 with a due date of 09/23/2025:

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

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (49092). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Router Operating System

Vendor

• TP-LINK

Name

• TL-WA855RE V5

Version

• 20200415-rel37464

License

• commercial

Website

• Vendor: https://www.tp-link.com/

CPE 2.3info

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CPE 2.2info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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