TP-link TL-WA855RE Missing Authentication for Critical Function
What to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA deadline 2025-09-23 · passed 11 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
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.
Who is affected
TP-Link TL-WA855RE. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-306.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 11 months ago
Sources
- NVD entry for CVE-2020-24363 nvd.nist.gov/vuln/detail/CVE-2020-24363
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- tp-link.com www.tp-link.com/us/home-networking/range-extender/tl-wa855re/#overview
- tp-link.com www.tp-link.com/us/support/download/tl-wa855re/#FAQs
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2020-24363