TP-Link TL-WR845N devices with firmware TL-WR845N(UN)_V4_200909 and TL-WR845N(UN)_V4_190219 was discovered to contain a hardcoded password for the root account which can be obtained by analyzing downloaded firmware or via a brute force attack through physical access to the router. NOTE: The supplier has stated that this issue was fixed in firmware versions 250401 or later.
TL-WR845N(UN)_V4_201214, TP-Link TL-WR845N(UN)_V4_200909, and TL-WR845N(UN)_V4_190219 was discovered to transmit user credentials in plaintext after executing a factory reset.
TP-Link TL-WR845N(UN)_V4_201214, TL-WR845N(UN)_V4_200909 and TL-WR845N(UN)_V4_190219 were discovered to contain weak default credentials for the Administrator account.
TP-Link TL-WR845N(UN)_V4_190219 was discovered to transmit credentials in base64 encoded form, which can be easily decoded by an attacker executing a man-in-the-middle attack.
LAN Code Execution on TP-Link Archer MR200, Archer C20, TL-WR850N and TL-WR845N
Published 2026-02-05 · Modified
5.9EPSS 0.004
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