Vulnerability record

CVE-2020-24363

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

Severity: HighExploitation: Exploitation confirmedCISA KEV
What should I do?

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run TL-WA855RE, fix it now.

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.

US federal civilian agencies must remediate by Sep 23, 2025.

Patch status

No official fix confirmed yet

Until a fix ships, follow the vendor's mitigations and CISA's required action, limit exposure of affected systems, and watch this record for a patch.

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.

Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.

Affected products

Products affected by this vulnerability, with versions and the source of each entry
ProductVendorSource
TL-WA855RETP-LinkKEV

Sources: KEV = CISA Known Exploited Vulnerabilities catalog. Version details have not been published yet.

Intelligence timeline

Developments from the last 30 days, newest first.

  1. CVSS scoredUpdateKEV

    CVE-2020-24363 scored CVSS 8.8: TP-Link TL-WA855RE, TP-link TL-WA855RE Missing Authentication for Critical Function Vulnerability

    CISA lists this as exploited in the wild. Unpatched TL-WA855RE systems are exposed to active attacks now.

    Basis: NIST National Vulnerability Database

1 earlier event is available with a subscription. See plans.

Coverage

We have not published a story about this vulnerability yet.

References

  • tp-link.com https://www.tp-link.com/us/home-networking/range-extender/tl-wa855re/#overview
  • tp-link.com https://www.tp-link.com/us/support/download/tl-wa855re/#FAQs
  • nvd.nist.gov https://nvd.nist.gov/vuln/detail/CVE-2020-24363
  • malwrforensics.com http://malwrforensics.com/en/2020/08/31/cve-2020-24363-tl-wa855re-v5-advisory/
  • pastebin.com https://pastebin.com/VjHM4UiA
  • tp-link.com https://www.tp-link.com/us/support/download/tl-wa855re/#Firmware
  • cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-24363