TP-Link · TL-WA855RE
CVE-2020-24363
TP-link TL-WA855RE Missing Authentication for Critical Function Vulnerability
What it 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.
CISA: 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.
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.
Deadline for US federal agencies: September 23, 2025
More exploited flaws from TP-Link
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| Sep 3, 2025 | Archer C7(EU) and TL-WR841N/ND(MS) OS Command Injection | Multiple Routers | High 8.6 | 38% |
| Sep 3, 2025 | Authentication Bypass by Spoofing | TL-WR841N | Medium 6.5 | 20% |
| Jun 16, 2025 | Command Injection | Multiple Routers | High 8.8 | 42% |
| May 1, 2023 | Archer AX-21 Command Injection | Archer AX21 | High 8.8 | >99.9% |
| Mar 25, 2022 | Directory Traversal | Multiple Archer Devices | High 7.5 | 84% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.